ECAT Pre Computer Science Chapter 14 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 14 Electromagnetism

Try The MCQ's Test For ECAT Physics Chapter 14 Electromagnetism

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ECAT Physics Chapter 14 Electromagnetism

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Question # 1

If volume of wire is 'AL' and there are 'n' numbers of charge carriers per unit volume, then the total number of charge carriers are

Question # 2

Current is measured in

Question # 3

The working of galvanometer depends upon torque exerted on a current carrying coil in

Question # 4

Total number of turns on 0.15 m length solenoid is 300. the value of n is:

Question # 5

41 The force experience, when proton projected in a magnetic field with velocity 'v' is

Question # 6

Method "lamp and scale arrangement" used to measure the

Question # 7

The force acting on a charge moving in a magnetic field

Question # 8

Electron gun consist of

Question # 9

The magnetic field in the middle of a solenoid due to current is

Question # 10

Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:

Question # 11

Ammeter is used to measure

Question # 12

The force experienced by charged particle is maximum, if it moves

Question # 13

It is customary represent a current flowing towards the reader by a symbol

Question # 14

In a moving coil galvanometer, the deflecting couple depends upon

Question # 15

magnetic field is a:

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 At a given instant, a photon moves in +x direction in a region where there magnetic field in -z direction. The magnetic force on the proton will be the:
A. -y direction
B. +y direction
C. +z direction
D. -z direction
2 When the waveform of one voltage is increasing and that of second is decreasing and vice versa, then phase difference between these voltage is
A. 90°
B. 75°
C. 0°
D. 180°
3 Weber is a unit of
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density
4 In the region surrounding a current carrying wire:
A. A magnetic field is setup

B.

The lines of force are elliptical

C.

Direction of lines of forces depends upon direction of current

D.

Both (A) and (C)
5 A galvanometer is an instrument used to
A. measure voltage across a circuit
B. detect current in a circuit
C. measure current flowing through a circuit
D. none of these
6 It is customary represent a current flowing towards the reader by a symbol
A. (x)
B. (+)
C. (.)
D. (-)
7 The magnetic field outside the solenoid due to current is
A. strong
B. zero
C. weak
D. uniform
8 A voltmeter is used to measure the
A. potential difference
B. current
C. temperature
D. resistance
9 In a straight current carrying conductor, the direction of magnetic field can be found by
A. right hand rule
B. left hand rule
C. head to tall rule
D. none of these
10 Resistance is measured in
A. volts
B. ampere
C. ohm
D. watt

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