Question

The current gain of a transistor in common base configuration is 0.95. Its current gain in common emmitter configuration would be

A- 0.96 B- 95 C- 19 D- 1/19

Answer 1

Question:

The current gain of a transistor in common base configuration is 0.95. Its current gain in common emmitter configuration would be

A - 0.96

B - 95

C - 19

D - 1/19

Answer:

(C) The current gain in common emitter configuration will be 19.

Explaination:

Given that,

The current gain of a transistor in common base configuration is 0.95.

The current gain in common emitter configuration will be

$\beta = \frac{ \alpha }{1 - \alpha }$

$\beta = \frac{0.95}{1 - 0.95}$

$\beta = 19$

Hence,

Hence, The current gain in common emitter configuration will be 19.

Answer 2

The correct option is C-19

Given : The current gain of a transistor in common base configuration = 0.95

To find : The current gain in common emmitter configuration

Solution :

β= α /( 1−α)

= 0.95/(1−0.95)

= 0.95/0.05

=19

Where β stands for Its current gain in common emmitter configuration

and

α stands for The current gain of a transistor in common base configuration.

#SPJ3