question_answer

Application of a forward bias to a p-n junction

A)  increases the number of donors on the n-side

B)  increases the electric field in the depletion zone

C)  increases the potential difference across the depletion zone

D)  widens the depletion zone

Correct Answer: A

Solution :

When p-side of junction diode is connected to positive of battery and n-side to the negative, then junction diode is forward biased. In this condition, more number of electrons enter in n-side from battery thereby increasing the number of donors on n-side.