SemiconductorHard

Question

The input resistance of a silicon transistor is 100 Ω. Base current is changed by 40 mA, which resultsin a change in collector current by 2 mA. This transistor is used as a common emitter amplifier witha load resistance of 4 kΩ. The voltage gain of the amplifier is

Options

A.1000
B.2000
C.3000
D.4000

Solution

Ri = 100i
ᐃib = 40 × 10-6 
ᐃic = 2 × 10-3 
= 2 × 103 = 2000

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