A transistor is connected in common emitter configuration. The collector supply is 8 V and the voltage drop across a resistor of 800 Ω in the collector circuit is 0 . 5 V . If the current gain factor α is 0 . 96 , the base current is

Question

A transistor is connected in common emitter configuration. The collector supply is 8 V and the voltage drop across a resistor of 800 Ω in the collector circuit is 0 . 5 V . If the current gain factor α is 0 . 96 , the base current is, 2.6 × 10 − 5 A, 3.6 × 10 − 5 A, 5.6 × 10 − 5 A, 6.6 × 10 − 5 A

MARKS App · Accepted Answer

For a common emitter configuration, collector current is I C I C = 0 . 5 800 = 0 . 625 × 10 - 3 A ; α = I C I E Now, I B = I E - I C I B = I C α - I C = I C 1 α - 1 I B = 26 × 10 - 6 A

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