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In the common emitter amplifier with RL = 4000Ω, given hfe = 100, hoe = 1 , hie = 1000, the current gain | AI | is given by— 36 × 103
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- 400
- 25
- 90
- 100
Correct Option: C
In the common amplifier, the current gain is given by
|AI | = | = | | 1 + hoe · RL | 1 + (4000 / 36 × 103) | 1 + (1 / 9) |
or |AI | = 90
Hence alternative (C) is the correct answer.