(B) The inductive reactance is given by $X_{L} = \omega L = 2\pi f L$. Since $X_{L} \propto f$,if the frequency $f$ is halved,the inductive reactance

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Inductive reactance will be halved and current will be doubled.

(B) The inductive reactance is given by $X_{L} = \omega L = 2\pi f L$. Since $X_{L} \propto f$,if the frequency $f$ is halved,the inductive reactance $X_{L}$ will also be halved. The current in a purely inductive circuit is given by $I = \frac{V}{X_{L}}$. Since $I \propto \frac{1}{X_{L}}$,if the inductive reactance $X_{L}$ is halved,the current $I$ will be doubled. Therefore,the inductive reactance is halved and the current is doubled.

Class 12 Physics Alternating Current Only Inductor, Only Capacitor and Only Resistor Circuit

Medium

What happens to the inductive reactance and the current in a purely inductive circuit if the frequency is halved?

JEE MAIN 2021 All JEE MAIN

A
Both,inductive reactance and current will be halved.
B
Inductive reactance will be halved and current will be doubled.
C
Inductive reactance will be doubled and current will be halved.
D
Both,inductive reactance and current will be doubled.

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What happens to the inductive reactance and the current in a purely inductive circuit if the frequency is halved?

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$A$ $120 \, V$ $AC$ source is connected across a pure inductor of inductance $0.70 \, H$. If the frequency of the source is $60 \, Hz$,the current passing through the inductor is: (in $, A$)

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An alternating e.m.f. is applied to a purely capacitive circuit. What is the phase relation between the e.m.f. and the current flowing in the circuit?

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