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A triode valve has an amplification fact...

A triode valve has an amplification factor 20 and its plate potential is 300 V . What should be the grid potential to reduce the plate current zero ?

A

`+15` volt

B

`-15` volt

C

`+20` volt

D

`-20` volt

Text Solution

Verified by Experts

The correct Answer is:
B
Here, `V_g=-V_p/(mu)=-300/20=-15V`
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