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An alternating current generator has an ...

An alternating current generator has an internal resistance `R_g` and an internal reactance `X_g`. It is used to supply power to a passive load consisting of a resistance `R_g` and a reactance `X_L`. For maximum power to be delivered from the generator to the load, the value of `X_L` is equal to

A

0

B

`X_g`

C

`-X_g`

D

`R_g`

Text Solution

Verified by Experts

The correct Answer is:
C
For delivering maximum power from the generator to the load, total internal reactance must be equal to conjugate of total external reactance.
`therefore X_"int"=X_"ext"`
`therefore X_g=(X_L)=-X_L`
`therefore X_L=-X_g`
Reactance of external circuit.
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