@@GKAgrawal2 sir can u please make a video on converting single phase 230v to three phase 440v ac,( using igbt's, controller,transformer) ....just basics....
इसे कहते हैं अनुभवी अध्यापक। सर कुछ बच्चे अच्छी मार्गदर्शन के अभाव में विज्ञान जैसे विषयों को बहुत कठिन समझने लगते हैं और उन्हें पढ़ना छोड़ देते हैं। आप जैसे अध्यापक को कोटि कोटि नमन । धन्यवाद सर।
Sir ap sach me adhyapak k roop me hamare liye bhagwaan hai...me ek training officer hu kahi bhi kisi practical me fas jaati hu to apke videos dekhti hu plus apne trainees ko apke videos dikhaa kr or skilled bnaati hu ...dil se dhanyawad guruji 🙏
Thanks sir ase informative video ke lia... Sir aap se request hai ki ak dusri type ki resister hoti hai aaj kal PCB pe dikhta hai uske bare me please explain kariyega
Respected sir, greetings 🙏 Thanks for sharing of this informative communication on subject. Very well explained. Request you, keep it up in your pattern.
Thanks for comment. Repetition can not be avoided to keep explanation in proper sequence. In fact after 350 videos, I may not even remember everything told earlier.
Hello sir ye bata dijiye ki mujhe aisa lagta hai ki mere ghar ka consumption utna nahi hai jitna meter me unite aa rhe hai mujhe aisa lagta hai meter tej chalta hai. Pta nhi kyo kuchh bataye POWER FACTOR 0.4 ,0.5 aise show krta hai ,jabki PF ko 0.9 hota chahiye. (Kya aisa ho sakta hai ki ghhar ki wiring maine. Khud hi kiya hai aur kahi kahi. Wire me maine allunminium ki cable ka bhi use kiya jo mere pass purani rakkhhi thi. To sir lya meter reading fast unite ki allunminium wire ki bui fark ho sakta hai kya? Help kare aur kuchh sujhaw de. Aur aisa mujhe issliye lga ki mere ghar ke Bagal wale ke yaha freez bhi hai. Tab bhi uska bil mere se kam aata hai.
Sir ji ceiling fan ki running winding ka resistance jyada hota h starting winding se kya???????🙏 confusion h kyunki ceiling fan ki running/Main/outer winding mein turns jyada hote h starting se Induction motor , washing machine motor mein starting winding mein to resistance jyada hota h
Sir ji mene inverter ki manual mein dekha tha ki Inverter ki noise ko kam krne k liye (trapezoidal wave ) shi krne k liye Output pe (150 watt 22 ohm resistor series with 2.5 mfd capacitor ) Ye kese work krta h sir ji..
@@GKAgrawal2 indicator mein lga resistance kitne volt drop krata h sir ji aur power and ohm's kitne hote h Isme lga Neon indicator kitne amps aur volt ka hota h
Sir mjjhe 4 ya 5 volt ki constant output supply chahiye aur input voltage 5 volt se 12 volt tak very kar sakta hsi to useee kaise banaye. Mujhe sahi se banana nhi aata ( zener diode aur resistors ki help se circuit bataye ) Hepl kare sir
Sir ye bataye ki mobile me lgi 1 Hi led lgi hoti hai wo bahut tej bloe krti hai jabki torch banate hai to kaise banaye aur kis value ke part lagaye jo bahut tejj blow kre.
Such a good video.. I have a question i am asking you because you are experienced and have a good knowledge, so i thought you can help me. I am using three 1/4W 330K resistor in series, my input voltage for those resistors is AC 230V Now the issue is that my resistors are getting open (i checked using DMM) And any one resistor from that series is getting open. I am just using this for voltage sensing the output of these three resistors is fed to opamp only. What will be the reason for this..?
More than 100k value resistor are less reliable and get opened frequently. I have explained this in my 2 videos of 20 tips for electronic circuit. Use 1W resistor 330k or 10 resistors of 100k 0.25W in series.
@@GKAgrawal2 one thing is that when i was using 330k 1206 smd resistors those resistors had worked fine and i never faced open resistor issue. What is the reason. And what should I prefer smd or through hole resistors
Note that My comment is for carbon film or metal film normal radial type resistor and not for SMD resistor. We have used SMD types also but, but I have no information about failure of that. Then other than wattage, other things like voltage, heating of nearby components, ambient temperature, moisture etc also matters.
Hello sir....!! In the last..5 second..video..clip...me Resistor k Horizontal aur Vertical me ...kmm grm aur jyada grm hone ka kya..Logic hai...btayiye..🙏🙏
if you will connect in parallel than your watts become 15 and resistor value 6.66 ohm and other if you will connect your resistor in series value will become 30 ohm and watts you have to take according 2.5 watts resistor 🙏🙏🙏
Thank you for this video, अगर एक वाट वाली रजिस्टर की जगह पर दो या तीन वाट वाली रजिस्टर का उपयोग करने पर उस रजिस्टर पर क्या असर होगा, वह जल जाएगा या फिर वह अपना काम ज्यादा देर तक करते रहना
Sir ji 9 watt led bulb mein 1 watt 82 ohm's k 2 resistor lge hote h Ek neutral pe aur Dusra phase pe Kya sir ye dono ki value add hogi ya phir 82 ohm hi rhega ek bhi to lga skte h na Sir ji yha 82 hi kyu use kiya h iska kya logik h guru ji🙏 please explain
If you put hot tea on a plate, it becomes cool faster, because of more area horizontally. Similarly if the resistor is horizontal, it will cool faster and so temperature rise will be less. If you keep your internet modem vertical, it will be hotter. Keeping it horizontal will keep it cool. Try to keep your mobile horizontal with the back side at the top, while charging for better cooling.
Sir g namaskar, sir 13v 36watt power supply,2 ghante keliye dummy load banana ho to kitane ohm a kilo ohm i resistace leni hogi, kirpaya batayen. Thanks
Sir, Thank you for the video and especially the last point about placing horizontally was extremely helpful. One question, if we know the current through a line, can we use I^2*R for calculating the power rating to choose the resistor ?
@@GKAgrawal2 Thank you sir. One more question. When I design PCB, sometimes to save space I put resistor in standing (vertical position). I learnt this by looking at other peoples circuits. Should I discontinue this habit?
Small watts resistor loss like in few milli watts then no problem. Problem is with high loss power resistor. Horizontal does not mean parallel to the PCB. Horizontal means parallel to the earth while in use, for better heat dissipation. As you have no control over use with respect to the earth except in panel design. So you can mount the way you want, but keep enough empty space around the resistor, and also take more wattage rating type resistor. You must find the design methods to reduce losses in the resistor.
Horizontal rakhney sey cooling surface area jyada hota hai. Aap ghar mey ek jaisey 2 geeley cloth lijiye. Ek ko rope per taang kar dry kariyey. Dusrey ko horizontal bed or floor per faila dijeyey. Horizonral vaala jaldi sukhega.
मैने 40 साल के कैरियर में कभी ऐसा नहीं किया । एक ही लंबाई के रजिस्टर में कई वाटेज हो सकती हैं । मेरे आज के वीडियो में ही देखिए । 3 वाट वाले और 5 वाट वाले रजिस्टर की लंबाई करीब-करीब बराबर है ।
Watch experience and theory-based wattage of the resistor.
G K Agrawal
Sir, why the resistor get less heated in horizontal position compare to vertical?
Better heat desipation. As heat move upward from more area. Horizontal means here parallel to earth. Exactly like, tea will cool faster in a plate.
G K Agrawal
Thank you sir. I regularly follow your videos.
Great work to help students and working professionals.
@@GKAgrawal2 sir can u please make a video on converting single phase 230v to three phase 440v ac,( using igbt's, controller,transformer) ....just basics....
Watch my video on what is VFD cincept
इसे कहते हैं अनुभवी अध्यापक। सर कुछ बच्चे अच्छी मार्गदर्शन के अभाव में विज्ञान जैसे विषयों को बहुत कठिन समझने लगते हैं और उन्हें पढ़ना छोड़ देते हैं। आप जैसे अध्यापक को कोटि कोटि नमन ।
धन्यवाद सर।
बिल्कुल सही कहा आपने...🙏👍
Resistor ki vertical / horizontal position ke bare me nayi jankari Mili.... Thanks sir....
Sir ap sach me adhyapak k roop me hamare liye bhagwaan hai...me ek training officer hu kahi bhi kisi practical me fas jaati hu to apke videos dekhti hu plus apne trainees ko apke videos dikhaa kr or skilled bnaati hu ...dil se dhanyawad guruji 🙏
Very good ki aap training deti hai.
@@GKAgrawal2 sr ap hamare liye guruji h.....or prerna bhi🙏
Very good explanation, good for beginners, you have a lot of patience to explain and that is a quality of a good instructor.
Ap bhot achy trha sy samjhty hain. Support and Love from Pakistan
Sir apki video bhut achi hoti h ,humare liye bhut use full hoti h
Mai pura prayatna karta hoo ki video acha aur useful baney
आप की क्लासेस बहुत ही बढ़िया रहती है थैंक्स सर।
Sir, superb. Fantastic explanation, this is called real experience.
Thank you so much sir for this valuable information, clear all the doubts 🙏
Sir, your way of teaching is so beautiful that even a layman of electricity and E&Tc can do the experiments provided he will have a presence of mind.
Experience speaks louder than theory 👍
Very amazing video sir.
Informative and learning.
Our experiences get enriched with your experiences
aawaj achi hai aapki sir...apke chrno me mera pranam
Sir aap bohot acha padhate ho aur
Aap jaisa knowledge hume kita se bhe nahe milta
Thank you sir je🙏
Sir namaste. Thanks for sharing your knowledge and experience.
Excellent sir
Thank you for teaching us 🙏
Thanks for a great explanation 🙂
very nice teaching method
Sir , aap ka video bohut accha lagta hain. Main aap ka ek subscriber & regular viewer. ( From West Bengal)
Very good, ki aapko merey video sey knowledge milti hai.
Yes sir, app ka samjhane ki tarika bohut accha hai👍👍👍👌👌👌👌
Each video are very good explaining
Thank you so much ,because of this video I solved a sheet of sums based on this topic
Thanks sir ase informative video ke lia...
Sir aap se request hai ki ak dusri type ki resister hoti hai aaj kal PCB pe dikhta hai uske bare me please explain kariyega
VERY NICE EXPLANAION.
Sir 1 bt poochni apse apne konsi catagery slect ki hui plz lazmi reply krna ya ye bta de k repairing channel liye konsi catagery best he
Great video with so much useful information.
Thanks for comment
Awesome ...esa video khi nhi h
Kyoki yeh industrial product design experience based hai.
Respected sir, greetings 🙏
Thanks for sharing of this informative communication on subject. Very well explained. Request you, keep it up in your pattern.
Thanks for comment. Repetition can not be avoided to keep explanation in proper sequence. In fact after 350 videos, I may not even remember everything told earlier.
@@GKAgrawal2 ok sir ji,
Useful video sir ji
Thankyou sir. Good explanation.
Sir please reply power loss krvana kyu hai ?
Bakki syb smj aa gya
Thank you for detailed video
Sir please make a video on cable size calculation for 1 phase and 3 phase loads.
Great knowledge respect from lahore
After a Long time sir
Love your videos sir
Sir ji, aap ke video bahut acha hai , ek request hai ki sir cable size calculation pe ek video aap ki taraf hona chahiye
Very nice sir,please tell logic about horizontal and vertical heating.
Horizontal to earth provides better cooling area, as heat goes upward. Tea in a plate will cool faster.
Good work sir
Hello sir ye bata dijiye ki mujhe aisa lagta hai ki mere ghar ka consumption utna nahi hai jitna meter me unite aa rhe hai mujhe aisa lagta hai meter tej chalta hai.
Pta nhi kyo kuchh bataye
POWER FACTOR 0.4 ,0.5 aise show krta hai ,jabki PF ko 0.9 hota chahiye.
(Kya aisa ho sakta hai ki ghhar ki wiring maine. Khud hi kiya hai aur kahi kahi. Wire me maine allunminium ki cable ka bhi use kiya jo mere pass purani rakkhhi thi.
To sir lya meter reading fast unite ki allunminium wire ki bui fark ho sakta hai kya?
Help kare aur kuchh sujhaw de.
Aur aisa mujhe issliye lga ki mere ghar ke
Bagal wale ke yaha freez bhi hai. Tab bhi uska bil mere se kam aata hai.
V2 /R = kese calculate Karte Hain
P=V^2/R formula h
P=VI I=V/R
Then
P=V^2/R
@@4629jay p=v^2/R..sir video banao calculate kaise karte hain
Nice video sir
Thanks guru ji 🙏
Sir resistor meain tollerence kya ootha hain
Sir aap formula ke through calculate karke samjhaiye.aur saath mei voltage drop kitna hoga yeh bhi bataiye.
Sir ji ceiling fan ki running winding ka resistance jyada hota h starting winding se kya???????🙏 confusion h kyunki ceiling fan ki running/Main/outer winding mein turns jyada hote h starting se
Induction motor , washing machine motor mein starting winding mein to resistance jyada hota h
Sir,
Why output current high to less than input current in vfd
Thank you Sir!
Thanks sir ji.....
Sir ji mene inverter ki manual mein dekha tha ki Inverter ki noise ko kam krne k liye (trapezoidal wave ) shi krne k liye
Output pe (150 watt 22 ohm resistor series with 2.5 mfd capacitor )
Ye kese work krta h sir ji..
Mera video snubber circuit in Hindi dekhey.
@@GKAgrawal2 indicator mein lga resistance kitne volt drop krata h sir ji aur power and ohm's kitne hote h
Isme lga Neon indicator kitne amps aur volt ka hota h
Sir mjjhe 4 ya 5 volt ki constant output supply chahiye aur input voltage 5 volt se 12 volt tak very kar sakta hsi to useee kaise banaye.
Mujhe sahi se banana nhi aata ( zener diode aur resistors ki help se circuit bataye )
Hepl kare sir
Sir 3 phase capacitor me risister lagathe kya hothahe
Sir,
Can you please make a vedio on the selection of star ,Delta and main contactors used for running 3 phase motors?
Sir ye bataye ki mobile me lgi 1 Hi led lgi hoti hai wo bahut tej bloe krti hai jabki torch banate hai to kaise banaye aur kis value ke part lagaye jo bahut tejj blow kre.
Sir ji ek 110 24 v dc relay 1no 1nc use hota uske bare mai bataye
Mera video relay working concept dekho.
Sir after lockdown how to prevent the failure of vfd, smps and other electronics instruments? and what measures to be taken? Please make a video.
Love you sir ..
Sir explain how to prevent electronic devices in case of high voltage in home due to neutral open at DP.
Sir kyu horizontal me kam heat hota hai vertical ke comparison me ye bata dijiye
Acha qun hai ye
Cooling achi hoti hai. Vasey hi jaisey plate mey chai jaldi thandi hoti hai.
Sir MOSFET ki datasheet ko kese understand kare is par video bana digiye q k TH-cam par AK BHI video Nahi h
Such a good video..
I have a question i am asking you because you are experienced and have a good knowledge, so i thought you can help me.
I am using three 1/4W 330K resistor in series, my input voltage for those resistors is AC 230V
Now the issue is that my resistors are getting open (i checked using DMM)
And any one resistor from that series is getting open.
I am just using this for voltage sensing the output of these three resistors is fed to opamp only.
What will be the reason for this..?
More than 100k value resistor are less reliable and get opened frequently. I have explained this in my 2 videos of 20 tips for electronic circuit. Use 1W resistor 330k or 10 resistors of 100k 0.25W in series.
@@GKAgrawal2 thank you for your reply i am surely gonna try this 😊
@@GKAgrawal2 one thing is that when i was using 330k 1206 smd resistors those resistors had worked fine and i never faced open resistor issue. What is the reason.
And what should I prefer smd or through hole resistors
Note that My comment is for carbon film or metal film normal radial type resistor and not for SMD resistor. We have used SMD types also but, but I have no information about failure of that. Then other than wattage, other things like voltage, heating of nearby components, ambient temperature, moisture etc also matters.
@@GKAgrawal2 yes you are right sir. I will take a look on those things also.
Nice v sirji
Sir, how it is controlled in a adjustable power supply, voltage and current separately. Please make a video on this topic
Sir me aap ki baat manta hn aap enginnerr ha
nice sir
Sir 4.7k 1 waat resistor ki bajye 2 waat use krny say circuit main koi farak aaye ga .. ya smoothly work kry ga
2W kaa laga saktey hai. Kaam karehaa, heating bhi less hogaa. Resistor value vahi 4.7k honi chahiye.
Sir solar inverter ka internal structure ka ek video banaiyega
Nmste sir
220 volt dc ko 110 volt dc me kese covert krenge 110v dc circuit me relay ki coil h kesi ratting 110 vdc h hare pass 220v dc shourse h.
SMPS se. Lekin agar sirf DC relay hi lagana hai then series resistor try ker saktey hai.
@@GKAgrawal2 sir 220v dc battery set ke beech me se 110 volt ka loop le to koi problems thori hogi. Agar le to kya safety rkhe hogi.
Agrawalji ap plus mines nahi batate kitna me kitna nikle puri ditail Bata ye
Aur resistors ki horizontal aur vertically rakhne se garam aur jyada garam ka kya funda hai sir ji
sir.ismay.volage.calculate.karka.digya.siir
sir.app.kisa.caculate.keya.hi.
Kya sir A.c current ka resistor different hota hai d.c current se??
Nahi
Sir ji capacitor kese work krta h as a resistor
Small charging circuit jese torch mein pf 154 lga hota h
Sir kya iske uper aap video bna skte h
LED Torch, transformer less supply charger per mera ek video already hai.
@@GKAgrawal2 thanku sir
Hello sir....!! In the last..5 second..video..clip...me Resistor k Horizontal aur Vertical me ...kmm grm aur jyada grm hone ka kya..Logic hai...btayiye..🙏🙏
Eska answer mai kai bar de chuka ho. Aap es video key comments ke answer dekhey.
@@GKAgrawal2 ok.
good video
hi sir, loved your videos. im stuck with problem. how to add 2 resistors of different values and wattages (10Ω/2.5W+20Ω/12.5W) ?
if you will connect in parallel than your watts become 15 and resistor value 6.66 ohm and other if you will connect your resistor in series value will become 30 ohm and watts you have to take according 2.5 watts resistor 🙏🙏🙏
If connected in parallel then total watt maximum 3.75 watts.
If connected in series, total watt 7.5 watt max.
@@GKAgrawal2 Sir ji series main jodne par sabse jyada load kam watt Wali resistor par padega to kaise ??
Series mey jis resistor ki value jyada hogi, us per jyada load padegaa.
@@GKAgrawal2 sir ji lekin watt bhi to jyada hai us resistor ki uska koi fark nahi
Sir horizontal or vertical se resistor ke heat hone se kya matter h plz btao sir
Horizontal hone per cooling ke liye area jyada milta hai, jaise ki tea plate mey jaldi cool hoti hai.
Okay sir thank you 😊
Thank you for this video,
अगर एक वाट वाली रजिस्टर की जगह पर दो या तीन वाट वाली रजिस्टर का उपयोग करने पर उस रजिस्टर पर क्या असर होगा, वह जल जाएगा या फिर वह अपना काम ज्यादा देर तक करते रहना
काम करेगा
Sir aap voltage drop bhi saath mei bataiye.
Sir ji 9 watt led bulb mein 1 watt 82 ohm's k 2 resistor lge hote h
Ek neutral pe aur Dusra phase pe
Kya sir ye dono ki value add hogi ya phir 82 ohm hi rhega ek bhi to lga skte h na
Sir ji yha 82 hi kyu use kiya h iska kya logik h guru ji🙏 please explain
Why resistor becomes more hot when u place it vertically? Pls explain
If you put hot tea on a plate, it becomes cool faster, because of more area horizontally. Similarly if the resistor is horizontal, it will cool faster and so temperature rise will be less.
If you keep your internet modem vertical, it will be hotter. Keeping it horizontal will keep it cool.
Try to keep your mobile horizontal with the back side at the top, while charging for better cooling.
@@GKAgrawal2 thanks for the nice explanation
Sir g namaskar, sir 13v 36watt power supply,2 ghante keliye dummy load banana ho to kitane ohm a kilo ohm i resistace leni hogi, kirpaya batayen. Thanks
4.7 ohm, 100 watts wire wound resistor. Or You can cut any old heater coil for suitable resistance value of 4.7 ohm also.
Led balb me fuse resistor ki tino value kese nikale
Sir konsa watt ka resistent kitne voltage pe chalte hai bataiye
Yeh datasheet sey pata chalega. Resistor ki detail datasheet dekho.
@@GKAgrawal2 rejisten ki datasheet kaha se milengi
Internet per search karo
@@GKAgrawal2 kya likh ke search karana padenga
Sir, Thank you for the video and especially the last point about placing horizontally was extremely helpful. One question, if we know the current through a line, can we use I^2*R for calculating the power rating to choose the resistor ?
Current through the resistor is I, then you can use the formula.
@@GKAgrawal2 Thank you sir. One more question. When I design PCB, sometimes to save space I put resistor in standing (vertical position). I learnt this by looking at other peoples circuits. Should I discontinue this habit?
Small watts resistor loss like in few milli watts then no problem. Problem is with high loss power resistor. Horizontal does not mean parallel to the PCB. Horizontal means parallel to the earth while in use, for better heat dissipation. As you have no control over use with respect to the earth except in panel design. So you can mount the way you want, but keep enough empty space around the resistor, and also take more wattage rating type resistor. You must find the design methods to reduce losses in the resistor.
@@GKAgrawal2 thank you very much for the clarification sir 🙏🏼
I don't know hindi but thoda thoda atha.sir.. Which regisitor use when 12wat, 140volatege sir🙏
Good sir
Dear Sir good afternoon
Sir जी क्या frequincy बढ़ने से current बढ़ेगा या कम होगा ।
अगर अगर रजिस्टर है तो करंट उतनी ही रहेगी But watch my video on AC DC resistance difference in Hindi.
Sir bahut aacha explain krte hain aap
Sir adc and dac ki calculation ka video bnana aap
Best
sir.formula.sa.calculate.kar.ka.bathea.sir
Sir ji 3w 510k rasistance voltage kitna hoga?
Agar P=V square/ R key formule dey calculate karo then 1237 volt aayega. But yeh theory hai. Practical mey less hoga. Datasheet dekhni hogi.
Sir bleeder resistence kya hota hai aur esaka calculation bataeya
Mera video bleeder resistor dekhey
Sir Resistance me horizontal or vertical me trampcher kyu difrance hota he or kese pata kare.
Horizontal rakhney sey cooling surface area jyada hota hai. Aap ghar mey ek jaisey 2 geeley cloth lijiye. Ek ko rope per taang kar dry kariyey. Dusrey ko horizontal bed or floor per faila dijeyey. Horizonral vaala jaldi sukhega.
Sir smd resister me wattes me paise pahchane
sir how to find solar current with resistor load
Watch my video on solar energy
ईतनी सुरक्षा योजना बाद पार्ट🔥 जादा है मन हूं परख लेना चाहिए
Sir, 5ohm resistor ka explain kijiye please 5 Watt
What is resistor
Sir Ji , जानकारी के लिए बहुत-बहुत धन्येवाद।
पर Sir जी उस रेसिस्टेंस का वाट कैसे पता करें जिस पर वाट नही लेखा हो।
नहीं कर सकते । बस अनुभव से अंदाजा लगा सकते हैं ।
@@GKAgrawal2 Sir Ji मैंने सुना है और यूट्यूब पर भी कई वीडियो देखी है उसमें वो लोग रेसिस्टेंस का साइज नाप कर वाट बताते है। क्या ये सही तरीका है?
मैने 40 साल के कैरियर में कभी ऐसा नहीं किया । एक ही लंबाई के रजिस्टर में कई वाटेज हो सकती हैं । मेरे आज के वीडियो में ही देखिए । 3 वाट वाले और 5 वाट वाले रजिस्टर की लंबाई करीब-करीब बराबर है ।
@@GKAgrawal2 सुक्रिया Sir जी मेरी अग्यानता दूर करने के लिए।
आपने मेरे वीडियो में 5 और 3 वाट के resistor की बराबर लंबाई note की