When the supply frequency increases, what happens to the capacitive reactance in the circuit?

(A) Increases
(B) Decreases
(C) Remains the same
(D) Becomes zero

Ans:(B) Decreases

Explanation:
The expression for capacitive reactance is: Xc=1/(2*pi*f*C). 
This relation shows that frequency is inversely related to capacitive reactance. Hence, as supply frequency increases, the capacitive reactance decreases.

 

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