1

JEE Advanced 2017 Paper 2 Offline

MCQ (More than One Correct Answer)

+4

-1

The instantaneous voltages at three terminals marked $$X,Y$$ and $$Z$$ are given by

$${V_x} = {V_0}\,\sin \,\omega t,$$

$${V_Y} = {V_0}\,\sin $$ $$\left( {\omega t + {{2\pi } \over 3}} \right)$$

and $$Vz = {V_0}\sin \left( {\omega t + {{4\pi } \over 3}} \right)$$

An ideal voltmeter is configured to read $$rms$$ value of the potential difference between its terminals. It is connected between points $$X$$ and $$Y$$ and then between $$Y$$ and $$Z.$$ The reading(s) of the voltmeter will be

$${V_x} = {V_0}\,\sin \,\omega t,$$

$${V_Y} = {V_0}\,\sin $$ $$\left( {\omega t + {{2\pi } \over 3}} \right)$$

and $$Vz = {V_0}\sin \left( {\omega t + {{4\pi } \over 3}} \right)$$

An ideal voltmeter is configured to read $$rms$$ value of the potential difference between its terminals. It is connected between points $$X$$ and $$Y$$ and then between $$Y$$ and $$Z.$$ The reading(s) of the voltmeter will be

2

JEE Advanced 2017 Paper 2 Offline

MCQ (More than One Correct Answer)

+4

-2

A source of constant voltage V is connected to a resistance R and two ideal inductors L

_{1}and L_{2}through a switch S as shown. There is no mutual inductance between the two inductors. The switch S is initially open. At t = 0, the switch is closed and current begins to flow. Which of the following options is/are correct?3

JEE Advanced 2017 Paper 1 Offline

MCQ (More than One Correct Answer)

+4

-1

In the circuit shown, $$L = 1\,\mu H,C = 1\,\mu F\,$$ and $$R = 1\,k\Omega .$$ They are connected in series with an a.c. source
$$V = {V_0}\sin \omega t$$ as shown.

Which of the following options is/are correct?

Which of the following options is/are correct?

4

JEE Advanced 2014 Paper 1 Offline

MCQ (More than One Correct Answer)

+4

-1

At time t = 0, terminal A in the circuit shown in the figure is connected to B by a key and an alternating current I(t) = I

_{0}cos ($$\omega$$t), with I_{0}= 1 A and $$\omega$$ = 500 rad s^{-1}starts flowing in it with the initial direction shown in the figure. At $$t = {{7\pi } \over {6\omega }}$$, the key is switched from B to D. Now onwards only A and D are connected. A total charge Q flows from the battery to charge the capacitor fully. If C = 20 $$\mu$$F, R = 10 $$\Omega$$ and the battery is ideal with emf of 50 V, identify the correct statement(s).Questions Asked from Alternating Current (MCQ (Multiple Correct Answer))

Number in Brackets after Paper Indicates No. of Questions

JEE Advanced Subjects

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