We know that in forward bias of p-n junction diode, when positive terminal is connected to p-type diode, the repulsion of holes takes place which decreases the width of potential barrier by striking the combination of holes and electrons.

Correct Option: B

We know that in forward bias of p-n junction diode, when positive terminal is connected to p-type diode, the repulsion of holes takes place which decreases the width of potential barrier by striking the combination of holes and electrons.

rectifier

Correct Option: D

rectifier

At 0 K,  motion of free electrons stop. Hence conductivity becomes zero. Therefore, at 0 K intrinsic semiconductor becomes insulator.

Correct Option: A

At 0 K,  motion of free electrons stop. Hence conductivity becomes zero. Therefore, at 0 K intrinsic semiconductor becomes insulator.

For conduction, p-n junction must be forward biased. For this p-side should be connected to higher potential and n-side to lower potential.

Correct Option: B

For conduction, p-n junction must be forward biased. For this p-side should be connected to higher potential and n-side to lower potential.

In forward biasing, the diode conducts. For ideal junction diode, the forward resistance is zero; therefore, entire applied voltage occurs across external resistance R
i.e., there occurs no potential drop, so potential across R is V in forward biased.

Correct Option: B

In forward biasing, the diode conducts. For ideal junction diode, the forward resistance is zero; therefore, entire applied voltage occurs across external resistance R
i.e., there occurs no potential drop, so potential across R is V in forward biased.