Question

A pn junction (D) shown in the figure can act as a rectifier. An alternating current source (V) is connected in the circuit.

The current (I) in the resistor R can be shown by

• A.
• B.
• C.
• D.

Answer 1

The correct option is C

The given circuit acts as a half-wave rectifier and clips-off negative voltage. So, no current will flow in the negative cycle while $I=\frac{V}{R}$ will flow in the positive cycle.