An alternating current generator has an internal resistance Rg an… - Vidyadip

MCQ

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

-X_g.

Solution:

For maximum power to be delivered from the generator (or internal reactance X_g) to the load (of reactance, X_L),

⇒ X_L + X_g = 0 (the total reactance must vanish)

⇒ X_L= -X_g.

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