Question

If in a $p-n$ junction, a square input signal of $10\text{V}$ is applied, as shown, then the output across $R_L$ will be

• A.
• B.
• C.
• D.

Answer 1

The correct option is A

When the voltage is $-5\text{V}$, the diode is reverse biased and the voltage across the resistor will be zero as current will be zero.

And when the voltage is $5\text{V}$, the diode is forward biased, the voltage across will be the same as the input voltage.

Hence, $\left(A\right)$ is the correct answer.