Question

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

Answer 1

Answer: (A)

increases the number of donors on the n-side

Answer 2

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.