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

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

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

Question # 3

Which is modified form of galvanometer

Question # 4

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

Question # 5

A magnetic force on an electron travelling with 108ms-1parallel to a field of strength 1 Wb m-2is

Question # 6

Ammeter is used to measure

Question # 7

The unit of flux density is also given by

Question # 8

F = I(L x B) is a

Question # 9

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

Question # 10

Galvanometer is a device used for the detection of

Question # 11

The field around a moving charge is called

Question # 12

A galvanometer is an instrument used to

Question # 13

magnetic field is a:

Question # 14

The gavanometer constant of a moving coil galvanometer is given by

Question # 15

Centripetal force for electron is given by

Question # 16

The vector representation of force experience give the direction of

Question # 17

A field is uniform and much stronger:

Question # 18

CRO deflects the beam of

Question # 19

In a moving coil galvanometer, the deflecting couple depends upon

Question # 20

The unit of magnetic flux is

Question # 21

When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be

Question # 22

The force acting as one meter length of the conductor placed at right angle to the magnetic field, when one A current is passing through it, defines the

Question # 23

The voltage increases linearly with

Question # 24

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

Question # 25

The strength of magnetic field around the current conductor is

Question # 26

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

Question # 27

Magnetic flux and flux density are related by

Question # 28

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

Question # 29

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

Question # 30

The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Magnetic lines of force:
A.

Cannot intersect at all

B.

Intersect at infinity

C.

Intersect within magnet

D.

Intersect at Neutral Point
2 A long wire wound tightly on a cylindrical core is called:
A. Potentiometer
B. Solenoid
C. Toroid
D. Wheat and stone bridge
3 The most suitable material for permanent magnet is
A. cobalt
B. iron
C. steel
D. alaminium
4 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
5 CRO deflects the beam of
A. proton
B. a-particle
C. electron
D. neutron
6 Which one of the following relations is correct?
A. 1 Wb-m2= Nm-1A-1
B. 1 tesla = 104 gausses
C. 1 Wb-m2= 1 tesla
D. All of the above
7 The working of galvanometer depends upon torque exerted on a current carrying coil in
A. magnetic field
B. electric field
C. gravitational field
D. nuclear field
8 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
9 Centripetal force for electron is given by
A. mv2/ r
B. mv / r2
C. mv2/ r
D. mr2/ v
10 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six

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