Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main 202117 MarchEvening Shift
Exam
JEE Main
Year
2021
Date
17 March
Shift
Evening Shift
Subject
Physics
Chapter
Alternating Current

JEE Main 2021 · 17 March · Evening Shift · Physics · Alternating Current

What happens to the inductive reactance and the current in a purely...

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

Options

  1. ABoth, inductive reactance and current will
    be halved.
  2. BInductive reactance will be halved and
    current will be doubled..
  3. CInductive reactance will be doubled and
    current will be halved.
  4. DBoth, inducting reactance and current will be doubled

Correct answer

B. Inductive reactance will be halved and
current will be doubled..

Step-by-step solution

XL=\omegaL{X}_{L} = \omegaL

i=v0\omegaLi = \dfrac{{v}_{0}}{\omegaL}

Practice Alternating Current on Quantrex Academy →

More from Alternating Current

Consider a circuit consisting of a capacitor of capacitance C and a coil with N turns per… JEE Advanced 2026A LCR series circuit driven with E_ rms = 90 V at frequency f_d = 30 Hz has resistance R… JEE Main 2026A series LCR circuit with R = 20\ Ω , L = 1.6 H and C = 40\ is connected to a variable… JEE Main 2026An a.c. source of angular frequency ω is connected across a resistor R and a capacitor C… JEE Main 2026An inductor of 10 mH, capacitor of 0.1\ μ F and a resistor of 100\ Ω are connected in… JEE Main 2026The figure given below shows an LCR series circuit with two switches S_1 and S_2 . When… JEE Main 2026An inductor stores 16 J of magnetic field energy and dissipates 32 W of thermal energy… JEE Main 2026The electric current in the circuit is given as i=i_ o (t / T) . The r.m.s current for… JEE Main 2026 Full Alternating Current list All JEE Main PYQs