A transistor is operated in common emitter configuration at VC = 2 V such that a change in the base current from 100 μ A to 300 μ A produces a change in the collector current from 10 mA to 20 mA. The current gain is

Question

A transistor is operated in common emitter configuration at VC = 2 V such that a change in the base current from 100 μ A to 300 μ A produces a change in the collector current from 10 mA to 20 mA. The current gain is (A) 75 (B) 100 (C) 25 (D) 50

Tardigrade Admin · Accepted Answer

Current gain, β = (Δ IC/Δ IB) = ((20 -100) mA/(300 - 100)mA) = (10 ×10-3/200 ×10-6) = 50

Q. A transistor is operated in common emitter configuration at $V_{C} = 2 V$ such that a change in the base current from $100 μ A$ to $300 μ A$ produces a change in the collector current from $10 m A$ to $20 m A$ . The current gain is

75

100

25

50

Current gain, $β = \frac{Δ I _{C}}{Δ I _{B}} = \frac{( 20 - 100 ) m A}{( 300 - 100 ) m A}$
$= \frac{10 \times 1 0 ^{- 3}}{200 \times 1 0 ^{- 6}} = 50$

Q. A transistor is operated in common emitter configuration at VC​=2V such that a change in the base current from 100μA to 300μA produces a change in the collector current from 10mA to 20mA. The current gain is

75

100

25

50

Current gain, β=ΔIB​ΔIC​​=(300−100)mA(20−100)mA​ =200×10−610×10−3​=50

Q. A transistor is operated in common emitter configuration at $V_{C} = 2 V$ such that a change in the base current from $100 μ A$ to $300 μ A$ produces a change in the collector current from $10 m A$ to $20 m A$ . The current gain is

Current gain, $β = \frac{Δ I _{C}}{Δ I _{B}} = \frac{( 20 - 100 ) m A}{( 300 - 100 ) m A}$
$= \frac{10 \times 1 0 ^{- 3}}{200 \times 1 0 ^{- 6}} = 50$