Q. For a transistor, in a common emitter arrangement, the alternating current gain $\beta$ is given by
A) $\beta = \left( \frac{\Delta I_{C}}{\Delta I_{B}} \right)_{V_{C}}$
B) $\beta = \left( \frac{\Delta I_{B}}{\Delta I_{C}} \right)_{V_{C}}$
C) $\beta = \left( \frac{\Delta I_{C}}{\Delta I_{E}} \right)_{V_{C}}$
D) $\beta = \left( \frac{\Delta I_{E}}{\Delta I_{C}} \right)_{V_{C}}$
Explanation
The correct answer is Option A: $\beta = \left( \frac{\Delta I_{C}}{\Delta I_{B}} \right)_{V_{C}}$.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.