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For CE transistor amplifier, the audio s...

For CE transistor amplifier, the audio signal voltage across the collector resistance of `2 kOmega` is 4V. If the current amplification factor of the transistor is 100 and the base resistance is `1kOmega`, then the input signal voltage is

A

`30mV`

B

`15mV`

C

`10mV`

D

`20mV`

Text Solution

Verified by Experts

The correct Answer is:
D
`beta=100`, `V_(0)=4V`, `R_(i)=10^(3)Omega`
`R_(0)=2xx10^(3)Omega`, `Vi=?`
`(V_(0))/(V_(i))=beta(R_(0))/(R_(i))implies(4)/(V_(1))=100xx(2xx10^(3))/(10^(3))impliesV_(i)=20mV`.
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