Home
Class 12
PHYSICS
A non transistor operates as a common em...

A non transistor operates as a common emitter amplifier, with a power gain of 60 dB. The input circuit resistance is `100 Omega` and the output load resistance is `10 k Omega`. The common emitter current gain `beta` is:

A

`10^2`

B

`10^4`

C

`6xx10^2`

D

60

Text Solution

Verified by Experts

The correct Answer is:
A
Power gain `=("Current gain")^2 ((R_("out"))/R_("in"))`
`10^6 =beta^2xx10^4/100`
`beta =100`
Promotional Banner

Similar Questions

Explore conceptually related problems

An npn transistor operates as a common emitter amplifier with a power gain of 10^6 . The input circuit resistance is 100 Omega and the output load resistance is 10 k Omega . The common emitter current gain ' beta ' will be (Round off to the Nearest Integer)

What is the voltage gain in a common emitter amplifier when the input resistance is 200 Omega and the load resistance is 1 K Omega ? ( beta = 50 )

A common emitter amplifier has a voltage gain of 50 , an input impedence of 100 Omega and an output impedence of 200 Omega . The power gain of the of the amplifier is

A common emitter amplifier has a voltage gain of 50, an input impedance of 100Omega and an output impedance of 200 Omega . The power gain of the amplifier is :-

A common emitter transistor amplifier has a current gain of 50 . If the load resistance is 4k Omega , and input resistance is 500 Omega , the voltage gain of amplifier is.

In a common emitter amplifier , the input resistance is 1 Omega and load resistance is 10 K Omega . If the current gain is 100, the voltage gasin of the amplifier is