The peak voltage of the ac source is equal to

2 times the rms value of the ac source

1 2 times the rms value of the ac source

the value of voltage supplied to the circuit

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 15 - Electromagnetic Induction and Alternating Currents>NEET - 1st May 2016>Q 26

EASY

NEET

IMPORTANT

Earn 100

A small signal voltage $V (t) = V_{0} \sin ω t$ is applied across an ideal capacitor $C$ :

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Important Questions on Electromagnetic Induction and Alternating Currents

HARD

NEET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 15 - Electromagnetic Induction and Alternating Currents>AIPMT - 3rd May 2015>Q 27

A conducting square frame of side

a

and a long straight wire carrying current

I

are located in the same plane as shown in the figure. The frame moves to the right with a constant velocity

V

. The e.m.f induced in the frame (when the centre of the frame is at a distance

x

from the wire) will be proportional to :
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MEDIUM

NEET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 15 - Electromagnetic Induction and Alternating Currents>AIPMT - 3rd May 2015>Q 28

A resistance

R

draws power

P

when connected to an

AC

source. If an inductance is now placed in series with the resistance, such that the impedance of the circuit becomes

Z

, the power drawn will be:

EASY

NEET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 15 - Electromagnetic Induction and Alternating Currents>AIPMT - 25th July 2015>Q 29

A series R-C circuit is connected to an alternating voltage source. Consider two situations:

i. When capacitor is air filled.

ii. When capacitor is mica filled.

Current through resistor is

i

and voltage across capacitor is

V

then:

EASY

NEET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 15 - Electromagnetic Induction and Alternating Currents>AIPMT - 25th July 2015>Q 30

An electron moves on a straight line path XY as shown. The abcd is a coil adjacent to the path of electron. What will be the direction of current, if any, induced in the coil?

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