ECAT Pre General Science Physics Chapter 14 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 14 Electromagnetism

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

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ECAT Pre General Science Physics Chapter 14 Electromagnetism

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Question # 1

A resistance used in voltmeter is called

Question # 2

Resistance is measured in

Question # 3

(CRO) Cathode ray oscilloscope is a device used for high speed

Question # 4

The angle of deflection of coil can be measured by the

Question # 5

A full-scale deflection is obtained in a galvanometer with a current of few

Question # 6

Which one of the following relations is correct?

Question # 7

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

Question # 8

The current is measured in

Question # 9

The unit of flux density is also given by

Question # 10

The voltage increases linearly with

Question # 11

In a moving coil galvanometer, the deflecting couple depends upon

Question # 12

A long wire wound tightly on a cylindrical core is called:

Question # 13

The force exerted on a conductor of length L, carrying current I when placed in a magnetic field B is given by

Question # 14

If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made

Question # 15

The torque per unit twist of coil is called

Question # 16

Flurescent screen is a screen where visible spot

Question # 17

CRO deflects the beam of

Question # 18

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

Question # 19

The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed

Question # 20

In order to make a voltmeter, high resistance is connected with galvanometer, in

Question # 21

The permeability of free space is measured in:

Question # 22

The SI unit of magnetic permeability is

Question # 23

The CRO is used for displaying the waveform of a given

Question # 24

A beam of electrons is provided by an

Question # 25

Avo-meter is used of measure the

Question # 26

When charged particle is projected perpendicular to a uniform magnetic field its trajectory is

Question # 27

Current is measured in

Question # 28

A resistance used in galvanometer to make it voltmeter is called

Question # 29

The field around a moving charge is called

Question # 30

Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 When charged particle is projected perpendicular to a uniform magnetic field its trajectory is
A. circular
B. elliptical
C. cycloid
D. straight line
2 If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made
A. Sensitive
B. Accurate
C. Stable
D. None of these
3 The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by
A. F =q(v/B)
B. F=q2(v x B)
C. F=q(v x B)
D. F= vx B
4 The CRO deflects the beam of electrons, when they passes through uniform
A. electric field
B. gravitational field
C. magnetic flax
D. magnetic field
5 The current in microamperes required to produce one millimeter deflection on a scale placed one meter away from the mirror of the galvanometer, defined the sensitivity of
A. ammeter
B. voltmeter
C. galvanometer
D. avo-meter
6 A resistance used in voltmeter is called
A. shunt resistance
B. high resistance
C. low resistance
D. zero resistance
7 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
8 Centripetal force for electron is given by
A. mv2/ r
B. mv / r2
C. mv2/ r
D. mr2/ v
9 A resistance used in galvanometer to make it voltmeter is called
A. shunt resistance
B. high resistance
C. zero resistance
D. none of these
10 A charged particle moving at right angle to the magnetic field will experience
A. minimum force
B. maximum force
C. zero
D. moderate force

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