Question

If in a p-n junction diode, a square input signal of $10V$ is applied as shown

Then the output signal across $R_L$ will De

• A.
• B.
• C.
• D.

Answer 1

Answer: (D)

For negative potential the diode becomes reverse biased whereas for positive potential diode is forward biased.
For $V_i<0$
the diode is reverse biased and hence offer infinite resistance, so circuit would be like as shown in Fig. (2) and $V_0=0$.


For $V_i>0$, the diode is forward biased and circuit would be as shown in Fig. (3) and $V_0=V_i$