Question

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. Zero
• B. $X_{g}$
• C. $- X_{g}$
• D. $R_{g}$

Answer 1

Answer: (C)

$- X_{g}$

Answer 2

: For maximum power to be delivered from the generator to the load, the total reactance must vanish.

i.e., $X_{L} + X_{g} = 0$ or $X_{L} = - X_{g.}$