LIGHT DEPENDENT RESISTOR(LDR) | AUTOMATIC STREET LIGHT Control using LDR

Works on the principle of LDR:
In simple words , it works on principle of Photoconductivity
.
When light falls i.e. when the photons fall on the device, the electrons in the valence band of the semiconductor material are excited to the conduction band. These photons in the incident light should have energy greater than the band gap of the semiconductor material to make the electrons jump from the valence band to the conduction band. Hence when light having enough energy is incident on the device more & more electrons are excited to the conduction band which results in large number of charge carriers. The result of this process is more and more current starts flowing and hence it is said that the resistance of the device has decreased. This is the most common working principle of LDR
Visualization of inverting action of BJT
• Visualization of inver...

[@thecraftsman915]

can u please tell me that what was the use of R1 in the night lamp circuit?

[@siddishirisha4511]

Very well explained thank u a lot

[@monikasaharan8444]

Does this work by using pnp transistor?

[@dimaliprasadika4459]

Thank you, this vedio was so many helpful to me. ☺️☺️

[@KnowledgeAmplifier1]

Glad to know the video was helpful to you Dimali Prasadika! Happy Learning :-)

[@dhruv_2808]

Thanks a lot sir.. It has solved many problems of mine

[@KnowledgeAmplifier1]

Glad to know the video helped you Dhruv kumar! Happy Learning :-)

[@shaymakhan4275]

Amazing man thank you so much 🙇🙇🙇

[@KnowledgeAmplifier1]

Glad it helped Shayma Khan! Happy Learning :-)

[@nisargagoutam986]

Can you please send me report of this or PPT u used to explain in this

[@pragyansupercoplife]

awesome just awesome

[@KnowledgeAmplifier1]

Thank You Prasenjit Saha
! Happy Learning :-)

[@khishorekumar8836]

Super sir great explanation

[@KnowledgeAmplifier1]

Glad to know the video is helpful to you KHISHORE KUMAR
! Happy Learning :-)

[@pritishsahu8639]

Really helpful sir..

[@KnowledgeAmplifier1]

Glad to know the video was helpful to you Pritish Sahu! Happy Learning 😃

[@abdulrashidsinancu1630]

superb

[@KnowledgeAmplifier1]

Thank You Sin Ann! Happy Learning :-)

[@arkobhattacharya2903]

Great explanation ❤️

[@KnowledgeAmplifier1]

Thank You Arko Bhattacharya! Happy Learning :-)

[@kusuma9625]

Sir...send me ppt plss

[@malaikawahid7400]

u need to improve ur pronounciation...

[@KnowledgeAmplifier1]

Thank you for your feedback Malaika Wahid! I will keep this in mind and try to improve in my next video onwards :-)