Planck's constant using LED | LED V-I Characteristics | Full Experiment & Practical File
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- เผยแพร่เมื่อ 3 ก.ย. 2020
- Determination of Planck's Constant using LED is the experiment covered by this video.
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Find Practical File (Lab Manual) Link at the Bottom
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Practical File Link -
alllabexperiments.com/v-i-cha...
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Sir file link ??
Good evening sir ,whether terminals of led is reversed to get stopping potential
@@naragirinadhunikrishna3919 no. That one is a different experiment to determine planck constant.
@@AllLabExperiments voltmeter reading is noted at which current in ammeter starts is taken as stopping potential is it correct
Procedure to do this exp is available sir
This is a very good experiment (actually not an experiment but a lab activity). In 1998 I developed this lab activity so that all of the Physics students at Midwood HS in Brooklyn could use different colored LEDs and a variable voltage supply to measure Planck's constant. The students got very good results. Hardest part was that I had to hand build a variable DC battery variable voltage supply for each lab station.
Nice... Great work... 👍
Who asked
Sharam karo.... Thodi izzat kar lo bhai.... Wo physics padhane Wale lagte hai@@nothing-ck1kd
You are doing great job. 👏👏
Superb explain sir
please keep it up. it really helps
Doing good work
Dhanywaad sir 🤝.
Kl Mera practical h aur aaj mne ye seekh liya h 😎🤜🤛
Cool 😎. All the best.
Very good sir
Thank you sir
Nice explanation !!
Io by hyr,w
Wow
TQ brother I❤
Hello,
What is the electronic circuit that will light the LEDs (red, orange, green, blue) one after the other by acting on the electrical voltage? And also without them lighting up almost at the same time. For example the green LED lights up almost at the same time as the blue LED.
Thank you for your response.
DIY
Is Vo knee voltage? ...then u take from graph.... voltage at which current just flows is knee voltage...can we not take from data ?
Not all curves make same kind of sharp curvature so its better for accuracy that you take a projection ok Voltage axis and then ise them
What is the range of DC volt meter and DC ammeter
Roighly around 10-20 V and 100-500 mA
Hello. I want to know why you set the resistance to 220 ohms in the video.
5V is too much for LED. To save LED from getting damaged we add an extra resistance.
Sir please upload analog electronics experiment
Planning to target them. But it may take sometime. Basically which experiments do you want me to perform. Please mention so that i can target them early
Oky sir
Can someone please send rough v° values
Find practical file on the webaite link given in description.
Sir file is not uploaded this experiment
@all lab experiment file upload sir please
File is there on the website. here is the link -
alllabexperiments.com/v-i-characteristics-of-an-led/
it is slightly different. LED V-I is available but not the final calculation of planck's constant
Sir link is not addd
I am searching for it. Wait, will reply you back soon.
sorry, i don,t have this file exactly so i didn't upload it. see if this is any how useful for you
alllabexperiments.blogspot.com/2020/10/to-draw-v-i-characteristics-of-led.html