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

Magnetic induction is also called as:

Question # 2

The strength of magnetic field around the current conductor is

Question # 3

A field is uniform and much stronger:

Question # 4

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 # 5

The e/m of an electron moving in a circular path in a magnetic field is equal to

Question # 6

The most suitable material for permanent magnet is

Question # 7

The direction of lines of force depends upon the direction of

Question # 8

The SI unit of magnetic flux is.

Question # 9

The unit of flux density is also given by

Question # 10

For the conversion of galvanometer into voltmeter, we connect a

Question # 11

Resistance is measured in

Question # 12

Flurescent screen is a screen where visible spot

Question # 13

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

Question # 14

The voltage increases linearly with

Question # 15

The galvanometer can be made sensitive if the value of the factor C/BAN is

Question # 16

The current sensitivity of the galvanometer is

Question # 17

Weber is a unit of

Question # 18

magnetic field is a:

Question # 19

The CRO is used for displaying the waveform of a given

Question # 20

The sources of magnetic field are

Question # 21

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

Question # 22

A beam of electrons is provided by an

Question # 23

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

Question # 24

'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?

Question # 25

Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as

Question # 26

Magnetic flux and flux density are related by

Question # 27

A shunt resistance parallel to the galvanometer is used to convert it into

Question # 28

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

Question # 29

When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into

Question # 30

In a straight current carrying conductor, the direction of magnetic field can be found by

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 In order to make a voltmeter, high resistance is connected with galvanometer, in
A. perpendicular
B. may be paralled or pendicular
C. series
D. none of these
3 The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called
A. magnetic flux
B. magnetic flux density
C. magnetic induction
D. magnetic field intensity
4 The magnetic field outside the solenoid due to current is
A. strong
B. zero
C. weak
D. uniform
5 The angle of deflection of coil can be measured by the
A. one method
B. three method
C. two method
D. none of these
6 In the formula B= µ̻ nl, the symbol n denotes:
A.

Total number of turns of solenoid

B.

Number of turns per unit length

C.

Number of turns per unit volume

D.

Numbers of turns per unit area
7 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
8 The CRO is used for displaying the waveform of a given
A. current
B. voltage
C. both of them
D. none of them
9 The SI unit of magnetic permeability is
A. WB A-1m-1
B. WB mA-1
C. WB Am-1
D. None of these
10 The permeability of free space is measured in:
A. Wb/Am
B. Wb A/m
C. Am/Wb
D. m/Web A

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