EASY
JEE Main/Advance
IMPORTANT
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The sinusoidal output current by a rectifier is shown in figure. The current amplitude is 2π A . The average value of output current is:

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Important Questions on Alternating Current

EASY
JEE Main/Advance
IMPORTANT

A series LCR circuit is shown in the figure. If inductor is removed from the circuit then current leads the voltage by 45° while if the capacitor is removed then the current lags the voltage by 45°. The rms current in the original LCR circuit is

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MEDIUM
JEE Main/Advance
IMPORTANT
In a series LCR circuit, the rms voltage supply is 170 V. If VR, VL and VC represent the rms voltage drop across resistor, inductor and capacitor, then
MEDIUM
JEE Main/Advance
IMPORTANT

The current in a certain circuit varies with time as shown. The peak value of current is I0. If iv and im represent the virtual (rms) and mean value of current for a complete cycle respectively, then

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MEDIUM
JEE Main/Advance
IMPORTANT
In a series LCR circuit, voltage applied is V=3sin314t+π6 and current from the supply is I=2sin314t+π3. Which of the following is correct?
MEDIUM
JEE Main/Advance
IMPORTANT

For a series LCR circuit given below, ω0 is the resonance frequency. Then R=12Ω, ω0L=6Ωand operating angular frequency, ω is half of the resonance frequency i.e. ω=ω02)

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MEDIUM
JEE Main/Advance
IMPORTANT
For a series LCR circuit in resonance
MEDIUM
JEE Main/Advance
IMPORTANT

Which of the following is/are correct for alternating current circuit?
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HARD
JEE Main/Advance
IMPORTANT

An alternating voltage E=6sin20t+8cos20t, is applied to a series resonant circuit as shown. The correct statements are :