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JEE Main 2022 (Online) 25th June Morning Shift
Numerical
+4
-1
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The current in a coil of self inductance 2.0 H is increasing according to I = 2 sin(t2) A. The amount of energy spent during the period when current changes from 0 to 2 A is ____________ J.

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2
JEE Main 2022 (Online) 24th June Morning Shift
Numerical
+4
-1
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As shown in the figure an inductor of inductance 200 mH is connected to an AC source of emf 220 V and frequency 50 Hz. The instantaneous voltage of the source is 0 V when the peak value of current is $${{\sqrt a } \over \pi }$$ A. The value of $$a$$ is ___________.

JEE Main 2022 (Online) 24th June Morning Shift Physics - Alternating Current and Electromagnetic Induction Question 60 English

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3
JEE Main 2021 (Online) 31st August Evening Shift
Numerical
+4
-1
At very high frequencies, the effective impendence of the given circuit will be ________________ $$\Omega$$.

JEE Main 2021 (Online) 31st August Evening Shift Physics - Alternating Current and Electromagnetic Induction Question 85 English
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4
JEE Main 2021 (Online) 31st August Morning Shift
Numerical
+4
-1
The electric field in an electromagnetic wave is given by E = (50 NC$$-$$1) sin$$\omega$$ (t $$-$$ x/c)

The energy contained in a cylinder of volume V is 5.5 $$\times$$ 10$$-$$12 J. The value of V is _____________ cm3. (given $$\in$$0 = 8.8 $$\times$$ 10$$-$$12C2N$$-$$1m$$-$$2)
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