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

The CRO deflects the beam of electrons, when they passes through uniform

Question # 2

Which is modified form of galvanometer

Question # 3

Method "lamp and scale arrangement" used to measure the

Question # 4

How many number of anodes used in electron gun

Question # 5

For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as

Question # 6

Magnetic flux and flux density are related by

Question # 7

The strength of magnetic field around the current conductor is

Question # 8

The vector representation of force experience give the direction of

Question # 9

A voltmeter is used to measure the

Question # 10

When the charged particle is projected at right angles to the field, then experienced by it will be:

Question # 11

In the expression of force experienced by electron, the direction of both v and B are

Question # 12

A field is uniform and much stronger:

Question # 13

The gavanometer constant of a moving coil galvanometer is given by

Question # 14

The pointer of a magnetic compass:

Question # 15

the current is pass through the straight wire. The magnetic field established around it has its lines of force:

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Charge to mass ratio (e/m) of an electron is given by the relation
A. e/m = 2V/Br2
B. e/m = 2V/B2r
C. e/m = 2V/B2r2
D. e/m = V/2B2r2
2 The permeability of free space is measured in:
A. Wb/Am
B. Wb A/m
C. Am/Wb
D. m/Web A
3 The CRO is used for displaying the waveform of a given
A. current
B. voltage
C. both of them
D. none of them
4 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
5 A relationship between Gauses of magnetic induction and Tesla(T) is given by
A. G 10-3T
B. G = 10-2T
C. G = 10-4T
D. G = 10-1T
6 Strength of magnetic field is measured in SI units, in:
A. N
B. N/Am
C. Am/N
D. Nm/A
7 For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as
A. modification
B. voltage
C. current
D. resistance
8 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
D. None of these
9 magnetic field is a:
A.

Vector quantity

B.

Scalar quantity

C.

Scalar as well as scalar quantity

D.

Any of (A) or (B)
10 If current through conductor is 1 A and length of conductor is 1m placed at right angle to the magnetic field, then the strength of magnetic field is
A. F = B2
B. F = 0
C. F = B
D. F = B/2

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