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WB JEE

Alternating Current

Physics

Previous Years Questions

MCQ (Single Correct Answer)

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When an AC source of emf E with frequency $$\omega$$ = 100 Hz is connected across a circuit, the phase difference betwee...
WB JEE 2022
Consider a pure inductive AC circuit as shown in the figure. If the average power consumed is P, then...
WB JEE 2021
The rms value of potential difference V shown in the figure is...
WB JEE 2021
When a DC voltage is applied at the two ends of a circuit kept in a closed box, it is observed that the current graduall...
WB JEE 2020
A parallel plate capacitor in series with a resistance of 100$$\Omega $$, an inductor of 20 mH and an AC voltage source ...
WB JEE 2019
When a 60 mH inductor and a resistor are connected in series with an AC voltage source, the voltage leads the current by...
WB JEE 2019
An alternating current is flowing through a series L-C-R circuit. It is found that the current reaches a value of 1 mA a...
WB JEE 2018
When the frequency of the AC voltage applied to a series LCR circuit is gradually increased from a low value, the impeda...
WB JEE 2017

MCQ (More than One Correct Answer)

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A 400$$\Omega $$ resistor, a 250 mH inductor and a 2.5 $$\mu $$F capacitor are connected in series with an AC source of ...
WB JEE 2020

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