Question

Which statements are correct for a P–N junction diode?
(A) For forward bias, P-side is connected to the positive terminal and N-side to the negative terminal of the battery.
(B) For forward bias, P-side is connected to the negative terminal and N-side to the positive terminal.
(C) For reverse bias, P-side is connected to the negative terminal and N-side to the positive terminal.
(D) For reverse bias, P-side is connected to the positive terminal and N-side to the negative terminal.
Choose the correct answer from the options given below:

• A. (A) and (B) only
• B. (A) and (D) only
• C. (A) and (C) only
• D. (B), (C), and (D) only

Hint:

Forward bias lowers the junction barrier, letting current flow; reverse bias heightens it, blocking conduction (except tiny leakage).

Answer 1

The Correct Option is C

When forward biased, the P-type region connects to the positive terminal (+) and the N-type region to the negative terminal (−). (Statement A is correct; B is incorrect).
When reverse biased, the P-type region connects to the negative terminal (−) and the N-type region to the positive terminal (+). (Statement C is correct; D is incorrect).