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In a circuit containing R and L , as the...

In a circuit containing R and L , as the frequency of the impressed AC increase, the impedance of the circuit

A

decreases

B

increases

C

remains unchanged

D

first increases and then decreases

Text Solution

Verified by Experts

The correct Answer is:
B
Impedance , Z = `sqrt R^(2) + (2`pi`fL)^(2)`
As f increases, Z will increase.
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