List of top Physics Questions on Semiconductor asked in UP Board XII

When an impurity is doped in a pure semiconductor, the conductivity of the semiconductor
Draw a circuit diagram to obtain characteristic curve in forward bias of p-n junction diode. Mention the effect of forward bias on depletion layer of the junction.
Temperature of a pure semiconductor is \(0\ \mathrm{K}\). Comment on its conductivity.
What is meant by doping in semiconductors?
The minority charge carriers in n type of semiconductors:

Whether the \( p\text{-}n \) junction diode is forward biased or reverse biased in the given figure. 

What are forward biasing and reverse biasing in \( p\text{-}n \) junction? Explain the difference between forward current and reverse current.
What is the nature of n-type semiconductor?
Explain the differences between \( n \)-type and \( p \)-type semiconductors. Show that both types of semiconductors are electrically neutral.
Discuss the characteristics of (i) forward biasing and (ii) reverse biasing in \( p\)-\(n \) junction. Explain the cause of origin and direction of current in both conditions.