Question

If in a pn junction diode, a square input signal of 10 V is applied as shown,

then the output signal across $R_1$ will be:

• A.
• B.
• C.
• D.

Answer 1

Answer: (D)

.

1. When the voltage is −5 V, the diode will be reverse biased and the voltage drop across the resistor will be zero as there is no current in the circuit.
2. And when voltage is +5 V, the diode will be forward biased, the voltage drop across resisdtor will be thAe same as input voltage.

Hence, the correct answer is option A.