CBSE Class 12-science - PN Diode Videos
PN Diode
Study p-n junction, semiconductor diode, diode in forward and reverse bias.
- Explain with the help of a suitable diagram, the two processes which o ccur during the formation of a p-n junction diode. Hence define the terms (i) depletion region and (ii) potential barrier. (b) Draw a circuit diagram of a p-n j unction diode under forward bias and explain its working. (5M)
- define semiconductors and types of semiconductors
- Formation of depletion layer
- What do you mean by depletion layer and potential barrier for a p-n junction.
- Can we measure the potential difference of a p-n junction by putting a sensitive voltmeter across its terminals?
- Name the different types of currents flowing through a p-n junction diode.
- a) In the depletion region of an unbiased p-n junction diode, what are the charge carriers? b)Which biasing makes the junction resistance low and which high?
- What do you understand by breakdown and breakdown voltage?
- How does an ideal diode behave when forward biased and reverse biased?
- What all techniques need to be used to obtained p-n junction?
