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

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 # 2

The current is measured in

Question # 3

The SI unit of flux density is.

Question # 4

The most suitable material for permanent magnet is

Question # 5

For the conversion of galvanometer into voltmeter, we connect a

Question # 6

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 # 7

Amperean path is a:

Question # 8

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 # 9

Tesla is the unit of

Question # 10

Charge to mass ratio (e/m) of an electron is given by the relation

Question # 11

CRO deflects the beam of

Question # 12

The force experienced by an electron projected in a magnetic field B with a velocity V is given by

Question # 13

Which is modified form of galvanometer

Question # 14

The unit of flux density is also given by

Question # 15

magnetic field is a:

Question # 16

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

Question # 17

The SI unit of magnetic flux is

Question # 18

A galvanometer in which the coil comes to rest quickly after the current passed through it, or the current stopped form flowing through it, is called

Question # 19

A relationship between Gauses of magnetic induction and Tesla(T) is given by

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

Resistance is measured in

Question # 24

In a moving coil galvanometer, the deflecting couple depends upon

Question # 25

The pointer of a magnetic compass:

Question # 26

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

Question # 27

The SI unit of magnetic permeability is

Question # 28

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

Question # 29

The strength of magnetic field around the current conductor is

Question # 30

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The SI unit of flux density is.
A. Tesla
B. Weber
C. Gaun
D. Weber/meter
2 In the expression of force experienced by electron, the direction of both v and B are
A. parallel
B. zero
C. perpendicular
D. none of them
3 The vector representation of force experience give the direction of
A. magnetic field
B. current
C. length of conductor
D. force
4 The magnetic field outside the solenoid due to current is
A. strong
B. zero
C. weak
D. uniform
5 A magnetic force on an electron travelling with 108ms-1parallel to a field of strength 1 Wb m-2is
A. Zero
B. 105 m
C. 10-10N
D. 108N
6 Magnetic lines of force:
A.

Cannot intersect at all

B.

Intersect at infinity

C.

Intersect within magnet

D.

Intersect at Neutral Point
7 A full-scale deflection is obtained in a galvanometer with a current of few
A. ampere
B. volts
C. milliampere
D. ohm
8 A voltmeter is used to measure the
A. potential difference
B. current
C. temperature
D. resistance
9 The force experienced by charged particle is maximum, if it moves
A. parallel to magnetic field
B. perpendicular to magnetic field
C. opposite to the magnetic field
D. none of these
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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