Question

The sequence of physical events when forward bias is applied to PN junction: A. Barrier potential reduces B. Majority carriers injected across junction C. Recombination in neutral regions increases D. Diffusion current established across quasi-neutral regions E. Net forward current increases Choose the correct answer from the options given below :

• A. A, E, B, D, C
• B. A, B, D, C, E
• C. A, B, C, D, E
• D. A, C, B, E, D

Hint:

For a forward-biased PN junction: \[ \text{Barrier Reduction} \rightarrow \text{Carrier Injection} \rightarrow \text{Diffusion} \rightarrow \text{Recombination} \rightarrow \text{Forward Current} \] Always remember that diffusion current is caused by carrier concentration gradients created after carrier injection.

Answer 1

The Correct Option is B