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Power gain for common base amplifier is 400 and voltage gain is 420 . Find the collector current (in mA ) when base current is 100 μA .

Correct answer

02.00

Step-by-step solution

A p = α A v ⇒ 400 = α × 420 ⇒ α = 40 42 = 20 21 ⇒ β = 20 And, l c = β × l b = 2   mA

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