The DC common-emitter current gain of an n-p-n transistor is 50 . The potential difference applied across the collector and emitter of a transistor used in CE configuration is, V C E = 2 V . If the co

Question

The DC common-emitter current gain of an n-p-n transistor is 50 . The potential difference applied across the collector and emitter of a transistor used in CE configuration is, V C E = 2 V . If the collector resistance R C = 4 k Ω , the base current I B and the collector current I C are

TestHub · Accepted Answer

Given, β = 50 , V C E = 2 V , R c = 4 k Ω I C = V C E R C = 2 4 × 10 3 = 5 × 10 - 4 A I C = 0.5 mA DC current gain, β = I C I B I B = I C β = 0.5 × 10 - 3 50 = 10 - 5 A Hence, I B = 10 μA

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