Question

For a common base circuit if Ic/Ie = 0.98 then current gain for common emitter circuit will be (a) 49 (b) 98 (c) 4.9 (d) 25.5

Answer 1

b is the answer.........

Answer 2

Explanation:

Answer is A is the answer

Ic/Ie=  = .98

Ic/Ib= = /1-=  49

In the common emitter circuit , the current gain is acquired from the base and the collector circuit currents. The little change in the base circuit has a direct impact on the collector circuit. Even the little change in the base current can produce huge change in the collector current.