Question

	LIST I		LIST II
A.	Bipolar npn transistor operate in the cut-off mode.		I. The base-emitter is reverse biased and
B.	Bipolar npn transistor operate in the saturation mode.		II. Both the base-emitter and base
C.	Bipolar npn transistor operate in the inverse active mode.		III. The base-emitter is forward biased
D.	Bipolar npn transistor operate in the forward active mode.		IV. Both the base-emitter and bas

Choose the correct answer from the options given below:

• (A) - (I), (B) - (II), (C) - (III), (D) - (IV)
• (A) - (II), (B) - (III), (C) - (IV), (D) - (I)
• (A) - (I), (B) - (II), (C) - (IV), (D) - (III)
• (A) - (II), (B) - (IV), (C) - (I), (D) - (III)

Hint:

The operating mode of a BJT is determined by the biasing of the base-emitter and base-collector junctions.

Answer 1

The Correct Option is A

In a BJT:
- Cut-off: Both junctions reverse biased.
- Saturation: Both junctions forward biased.
- Inverse active: Base-emitter junction forward biased, base-collector junction reverse biased.
- Forward active: Both junctions forward biased.