It's more than 2 years but still you're still my favorite TH-camr Sir in sense of learning and studying. The way you explain all the topic is so easy even dull student can also understand if he/she knows English. ❤❤
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thanks a lot sir for you videos on microwave engineering ...for me this topic was tooo difficult to understand as sir which was teaching us was not good but after watching your videos this subject was easy to we ...thanks a lot sir once again lots of love from goa
every concepts are explained in detail here... which seems very easy to learn just by watching engendering funda video ..which is very helpful for many of the students n even teachers can have a good guidelines from these..thanks a ton to engineering funda....
Engineering Funda ..that would be great ..after that I will surely watch all ur videos ...and thanks for adding all those topics which would be in great demand from now as these videos make all the concepts clear to the viewers..
bhai don't rely on one place for anything do study from different places else have passions then go for NPTEL although its not easy to study from nptel but clear everything when you are studying first time.
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gunn effect to batao sir kya hota hai?? and why negative resistance is coming / why mobility decreases the main concept please ......what is valley .....working with energy band diagram.... everything which is not easily founded in normal books you also escaped please make another video for this diode including these things
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Your positive comments motivates me. Teachers like me just wants positive comment from student. Love from you guys means a lot to me. My goal is to create largest community of engineers in entire globe. Please help me by sharing this playlist with your friends.
Your positive comments motivates me. Teachers like me just wants positive comment from student. Love from you guys means a lot to me. My goal is to create largest community of engineers in entire globe. Please help me by sharing this playlist with your friends.
J.B Gunnfound that in a small DC voltage is applied at the ends of N type gallium arcanide or Indian phosphide , the current first Rises linearly from zero and then begins to oscillate with the certain threshold is reached the time of the oscillation that is is very close to the time it takes for the carriers to from travel from one contact to the other contact through n type material and this is known as gun effect or bulk effect.
J.B Gunnfound that in a small DC voltage is applied at the ends of N type gallium arcanide or Indian phosphide , the current first Rises linearly from zero and then begins to oscillate with the certain threshold is reached the time of the oscillation that is is very close to the time it takes for the carriers to from travel from one contact to the other contact through n type material and this is known as *Gun effect* or bulk effect.
+ayesha Shaikh : in lower valley +ve resistance is about to begin by further increase in voltage and at upper valley -ve resistance is about to begin as you increase voltage further so do biasing of Gunn diode in between this to point so that you can have minimum reverse recovery time and fast switching characteristics.
ayesha Shaikh : see direction of electron is same as current is positive but qauntity of electrons decreases during -ve resistance characteristics and quantity of electrons increases during +ve resistance characteristics and that you can understands based on mobility in characteristics.
Your positive comments motivates me. Teachers like me just wants positive comment from student. Love from you guys means a lot to me. My goal is to create largest community of engineers in entire globe. Please help me by sharing this playlist with your friends.
+Harpreet Singh : I think you will learn English gradually so don't worry about it. And I am not good with Hindi so after watching some videos you will get everything in English
+Siddharth Sharma : mobility is getting negative. So velocity of electrons is getting drifted in opposite direction hence it results into increase in voltage with decrease in current
+Siddharth Sharma : negative resistance means increase in voltage with decrease in current so if u have reverse (-ve) mobility (v_d/E) then increase in voltage will increase electric field and increase in electric field will decrease current.
Positive terminal is there with p+ and negative terminal is there with n+ so direction of current will be from n+ to p+ so one can easily say holes will move towards p+ and electrons should move towards n+.
Engineering Funda Bt they are supposed to repel As holes are positive and electrons are negative So how holes(positive charge) goes to p+ (also positive) and same in case of electrons Please explain
Is it possible to explain what is the difference between characteristics of Tunnel diode and Gunn diode I can't catch it also what is the differences between both effects they looks like the same. I will be really grateful if you explain to me.
+yash 2 : it's giga hz only and written as GHz. May be u might have read that due low quality but u can switch it to high resolution, it's available up to 1080p with this video
Ye sb to book se hi pdh lete ....Saari bookish language use ki h aapne ...Try to give more knowledge and practicability rather than delivering only theory ..Its a positive feedback i am giving...Do not take it in any other ways
Your positive comments motivates me. Teachers like me just wants positive comment from student. Love from you guys means a lot to me. My goal is to create largest community of engineers in entire globe. Please help me by sharing this playlist with your friends.
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It's more than 2 years but still you're still my favorite TH-camr Sir in sense of learning and studying.
The way you explain all the topic is so easy even dull student can also understand if he/she knows English. ❤❤
Your Appreciations, care and share matters a lot to me. #EnginneringLove.
All the subjects playlist of Engineering Funda is available in comment section. Share it with your friends to support us.
Your positive comments motivates me and person like me get boosted by my students feedback. Thanks and welcome 🙏
watch with 1.75x ,it saves ur time
Thanks for the advice bro it helped
Thanjs for advice it really helped❤️❤️
😆😆
Really..i watched it 2x speed..still i realized that time is also wasted..
No bhro 2x speed aheaa
bht ziada direct parhaya hai bhai. Beginner hun mian.. kuch pally nhn parha. ooper se bar bar ads focus deviate krrhy the
Where is gunn effect
Thank u sir.i make a very handy short note for semester by watching the video
thanks a lot sir for you videos on microwave engineering ...for me this topic was tooo difficult to understand as sir which was teaching us was not good but after watching your videos this subject was easy to we ...thanks a lot sir once again lots of love from goa
every concepts are explained in detail here... which seems very easy to learn just by watching engendering funda video ..which is very helpful for many of the students n even teachers can have a good guidelines from these..thanks a ton to engineering funda....
+parth soparia : this is just a beginning. You will get microwave, antenna, electromagnetics and many more in next few months
+parth soparia : thanks and your welcome
Engineering Funda ..that would be great ..after that I will surely watch all ur videos ...and thanks for adding all those topics which would be in great demand from now as these videos make all the concepts clear to the viewers..
What is the meaning of less reverse recovery time?
bhai don't rely on one place for anything do study from different places else have passions then go for NPTEL
although its not easy to study from nptel but clear everything when you are studying first time.
Very much helpful, thank you for preparing such topics and explaining it in such a easy way.
All the subjects playlist of Engineering Funda is available in comment section. Share it with your friends to support us.
Your positive comments motivates me and person like me get boosted by my students feedback. Thanks and welcome 🙏
Tnxs for ur wonderful teaching...... 👍💯 👏
Your positive comments motivates me.
Teachers like me just wants positive comment from student.
Love from you guys means a lot to me.
My goal is to create largest community of engineers in entire globe. Please help me by sharing this playlist with your friends.
@@EngineeringFunda yeah definitely Sir... .. I share to my all friends .....keep rocking 🔥
gunn effect to batao sir kya hota hai?? and why negative resistance is coming / why mobility decreases the main concept please ......what is valley .....working with energy band diagram.... everything which is not easily founded in normal books you also escaped please make another video for this diode including these things
Definitely I will make one more video on it. Thanks to remind me. God bless you
@@EngineeringFunda sir please make another video as Gunn diode . You didn't explain Gunn effect, valley,high field domain,rwh theory.
Engineering Funda sir, please make video on GUNN DIODE USING RWH Theory with derivation
Love the way of explaining..🙂💎💎💎💎💎💎💎
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Nice explain sir
Your welcome
Awesome 👍
Your welcome 🙏
very nice
Your positive comments motivates me.
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Extraordinary .super keep it up
Well explained Sir 🙏
Your positive comments motivates me.
Teachers like me just wants positive comment from student.
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Your lectures are super.
Operating modes of gunn diode?
J.B Gunnfound that in a small DC voltage is applied at the ends of N type gallium arcanide or Indian phosphide , the current first Rises linearly from zero and then begins to oscillate with the certain threshold is reached the time of the oscillation that is is very close to the time it takes for the carriers to from travel from one contact to the other contact through n type material and this is known as gun effect or bulk effect.
U didn't explained the reasons for -ve region with electron level ...
This was not expected sir
Hey nicely done...the flow and ease u kept thoughout is commendable... really helped me understand it super quick...thanks
+Sohrab Quraishi : your welcome
Tnx sir very good video
J.B Gunnfound that in a small DC voltage is applied at the ends of N type gallium arcanide or Indian phosphide , the current first Rises linearly from zero and then begins to oscillate with the certain threshold is reached the time of the oscillation that is is very close to the time it takes for the carriers to from travel from one contact to the other contact through n type material and this is known as *Gun effect* or bulk effect.
Congratulations on reaching 100k subscribers, Keep up the Good work!
All was good i am not understanding writing due to sketch plz write neatly brother
Thank you for this gunn diode 😇
Aur kitna neat chahiye bhai tujhe
@@prasannakamath9972 taaki mai clarity hone samjhsaku bhai terko kya leana deana hai meri baat tho ussea hoorai naa terko kyu beach mea aaraa
Awesome
Your positive comments motivates me, Thanks and welcome 🙏
Well explained!!...I want to know the working of two valley in conductiom band i.e lower and upper valley in gunn diode
+ayesha Shaikh : in lower valley +ve resistance is about to begin by further increase in voltage and at upper valley -ve resistance is about to begin as you increase voltage further so do biasing of Gunn diode in between this to point so that you can have minimum reverse recovery time and fast switching characteristics.
how does the transfer of electrons takes place from lower valley to upper valley?
ayesha Shaikh : see direction of electron is same as current is positive but qauntity of electrons decreases during -ve resistance characteristics and quantity of electrons increases during +ve resistance characteristics and that you can understands based on mobility in characteristics.
Got it!!
thanks alot for your explaination sir..you explained it well.
ayesha Shaikh : your welcome
Sir can u send me a link for modes of operation of gunn
Thnx sir
Your positive comments motivates me.
Teachers like me just wants positive comment from student.
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THNKS LOT ....SIR ✌😊
Your welcome
Great job doing man!
Why don't you explain about domain formation ...it is the basic explanation required??
Thank you sir
Love and happiness of students is my ultimate goal, God bless you 🙏, keep learning and keep progressing.
@@EngineeringFunda to gunn effect explain kar dijiye
nice
Explain about Gunn effect
Read other comments
Sir where is gunn effect?
VERY GOOD.
+Barot Santosh : :)
Thank you sir. Very helpful.
great video
Sir can you please make a video on *Gun Diode explanation with the help of two valley model.*
He is saying just like we say viva for external
Thank u very much for these information's
Your welcome
i really like your videos so much .. keep going bro .. good luck
+mahmoud sherif : your welcome
What is Domain formation and RWH Theory of gunn diode
your the best for me keep going on but plz hindi me video bhana
+Harpreet Singh : I think you will learn English gradually so don't worry about it. And I am not good with Hindi so after watching some videos you will get everything in English
"Bhana" kyaa ?? Banao bolo, banao. Baap hai voh tera !!!
Thanks!
Sir actually gunn diode doesn't works in forward bais know sir it's works only in reverse bais condition
what causes the mobility to decrease?
2 valley theorem?
Please explain gunn effect
Gunn diode operation modes please
Audio of every videos are not proper otherwise everything is perfect
what do you mean by n+ layer?
does that indicate presence of holes in n region?
N+ mean highly doped n type material. Mean highly doped electrons by pentavelnt impurities
Thanks sir
Thanks for uploading :)
Correct d spelling of 'symbol'
Sir synchro as error detector pr video banaiye
Sir please explain the modes of Gunn diode
what are n+ contacts made of......??? and secondly what happen if the inner active region is heavily doped....???
Why the current after peak point decreases till valley point only not above or below of valley point
Why do we use "gold plated" molybdenum studs ?
Wt about 5th point gunn effect
Exactly
It is GHz ,the way he writes G is some how different then yours
U havent explained operation how it works
+HR Creative Works : it's working is bised in forward bias at negative resistance region.
Triggers my google assistant at the end
What i sreverse recovery time? Also how is it related to the reversed drift velocity or the negative resistance?
+Siddharth Sharma : mobility is getting negative. So velocity of electrons is getting drifted in opposite direction hence it results into increase in voltage with decrease in current
+Siddharth Sharma : reverse recovery time means time required to evacuate all charge carrier so that state change from on to off.
Thank you for repllyinv but I still dont get it, how does negative resistance assist in quick recovery times?
+Siddharth Sharma : negative resistance means increase in voltage with decrease in current so if u have reverse (-ve) mobility (v_d/E) then increase in voltage will increase electric field and increase in electric field will decrease current.
Gunn effect is not there sir please send
Sir please explain rwh theory with diagram
I think you forgot to say gun effect
+Aftab Ashraf Av :) it's already explained there.
Any way it helped me a lot..
The reversal of drift velocity from positive to negative is called Gunn effect.
+Preksha Patel : yeah ... I think I have explained that
How is current is decreasing sir
Why holes go to p+ and electrons go to n+
As they should attract negative charges
Positive terminal is there with p+ and negative terminal is there with n+ so direction of current will be from n+ to p+ so one can easily say holes will move towards p+ and electrons should move towards n+.
Engineering Funda
Bt they are supposed to repel
As holes are positive and electrons are negative
So how holes(positive charge) goes to p+ (also positive) and same in case of electrons
Please explain
Holes are moving towards p+ and making it more p+ that's the point.
Engineering Funda
Ohkk thanx
Why drift velocity decreases or reverses. That explanation is not given.
Where is Gunn effect?
can u plz explain gunn effect using two-valley model ?
+dhira negi : it is already explained here, Gunn effect is translation of mobility from +ve to -ve. Now you see two valley and apply it
two valley model sir. today is my exam . ur videos help alot
Is it possible to explain what is the difference between characteristics of Tunnel diode and Gunn diode I can't catch it also what is the differences between both effects they looks like the same. I will be really grateful if you explain to me.
can anyone explain domain formation please!
What exactly valley point means
Where is
Wave guide & coaxal cavity
Gunn effect is not in this video
Explanation kahan hai bhai ?
He saying giga hz but writing khz what the... But video is good
+yash 2 : it's giga hz only and written as GHz. May be u might have read that due low quality but u can switch it to high resolution, it's available up to 1080p with this video
Engineering Funda its was written 3-10khz isn't it correct me if i am wrong
+yash 2: it is 3 to 10 GHz. May be my writing is not good enough to convence u.
if you see his previous videos you'll see that it is just how he writes 'G', you get used to it after a few videos.
yes i also thought first time that it's khz,
nice videos.......... mate xD
+harshpal singh : thanks and your welcome
How it works
sorry to say this sir but in every vedio there will be a phone call for u :P
Heloo where is gunn effect yar?
Ye sb to book se hi pdh lete ....Saari bookish language use ki h aapne ...Try to give more knowledge and practicability rather than delivering only theory ..Its a positive feedback i am giving...Do not take it in any other ways
Thanks for your suggestion
you didn't explain the working sir
Sir ye ke sem k liye short notes provide kar dijiye na
Didn't get you
Kuch ni bataya....Upar upar de bta Diya ......bekaaar Awadhi adhoori explanations
any kct students ?????
sir lesson in hindi
15 minute video having 15 advertisements. Is it a joke to you?????? How can anyone concentrate with so much interruptions in between?????????????
Itna deeela video h
Warch at 10x save ur time
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63 be
Stupid ratta maar way of teaching, no wonder why America is so advance then us
Kya bakwaas h
Terrible
Thank you sir
Your positive comments motivates me.
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Thank you sir. Very helpful.
Where is gunn effect?