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

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:

Question # 2

magnetic field is a:

Question # 3

The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called

Question # 4

A current carrying conductor sets up its own:

Question # 5

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

Question # 6

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

Question # 7

A solenoid is a coil of wire which is:

Question # 8

For the conversion of galvanometer into voltmeter, we connect a

Question # 9

The angle of deflection of coil can be measured by the

Question # 10

Strength of magnetic field is measured in SI units, in:

Question # 11

A resistance used in galvanometer to make it voltmeter is called

Question # 12

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 # 13

CRO deflects the beam of

Question # 14

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

Question # 15

The CRO is used for displaying the waveform of a given

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A charged particle moving at right angle to the magnetic field will experience
A. minimum force
B. maximum force
C. zero
D. moderate force
2 Centripetal force for electron is given by
A. mv2/ r
B. mv / r2
C. mv2/ r
D. mr2/ v
3 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
4 Magnetic flux and flux density are related by
A. Flux density = flux x area
B. Flux density = flux / area
C. Flux density = flux - area
D. None of these
5 The galvanometer can be made sensitive if the value of the factor C/BAN is
A. constant
B. small
C. large
D. none of these
6 The field around a moving charge is called
A. magnetic field
B. conservative field
C. non-conservative field
D. none of these
7 The CRO deflects the beam of electrons, when they passes through uniform
A. electric field
B. gravitational field
C. magnetic flax
D. magnetic field
8 The angle of deflection of coil can be measured by the
A. one method
B. three method
C. two method
D. none of these
9 A field is uniform and much stronger:
A.

Inside a long solenoid

B.

Outside a long solenoid

C.

At the end of a long solenoid

D.

At the central point of long solenoid
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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