Question

A $p-n$ junction shown in the figure can act as a rectifier. An alternating current source $\left(V\right)$ is connected in the circuit.


The current $\left(I\right)$ in the resistor $\left(R\right)$ can be shown by

• A.
• B.
• C.
• D.

Answer 1

The correct option is B

The given circuit works as a half-wave rectifier.

In this circuit, we will get current through $R$ when $p-n$ junction diode is forward biased and no current when $p-n$ junction is reversed biased.

Thus, the current through resistance will be shown by the graph given in option $\left(\text{B}\right)$.

Hence, option $\left(\text{B}\right)$ will be the correct representation of current.