The current gain of a transistor in common base mode is 0.995 . The current gain of the same transistor in common emitter mode is

Question

The current gain of a transistor in common base mode is 0.995 . The current gain of the same transistor in common emitter mode is (A) 197 (B) 201 (C) 198 (D) 202

Tardigrade Admin · Accepted Answer

β =(α /1-α ) =(0.995/1-0.995) =(0.995/0.005) =199

Q. The current gain of a transistor in common base mode is $0.995$ . The current gain of the same transistor in common emitter mode is

197

201

198

202

199

$β = \frac{α}{1 - α}$
$= \frac{0.995}{1 - 0.995}$
$= \frac{0.995}{0.005}$
$= 199$

Q. The current gain of a transistor in common base mode is 0.995 . The current gain of the same transistor in common emitter mode is

197

201

198

202

199

β=1−αα​ =1−0.9950.995​ =0.0050.995​ =199

Q. The current gain of a transistor in common base mode is $0.995$ . The current gain of the same transistor in common emitter mode is

$β = \frac{α}{1 - α}$
$= \frac{0.995}{1 - 0.995}$
$= \frac{0.995}{0.005}$
$= 199$