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

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

Question # 2

The magnetic field outside the solenoid due to current is

Question # 3

Which one of the following relations is correct?

Question # 4

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

Question # 5

The most suitable material for permanent magnet is

Question # 6

Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:

Question # 7

Flurescent screen is a screen where visible spot

Question # 8

In a moving coil galvanometer, the deflecting couple depends upon

Question # 9

F = I(L x B) is a

Question # 10

A galvanometer is an instrument used to

Question # 11

The permeability of free space is measured in:

Question # 12

The magnetic force exerted on an electron moving with velocity 'v' at right angle to the magnetic field is given by

Question # 13

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 # 14

The force acting on a charge moving in a magnetic field

Question # 15

To convert galvanometer into ammeter we connect

Question # 16

The unit of flux density is also given by

Question # 17

A charged particle moving at right angle to the magnetic field will experience

Question # 18

For the conversion of galvanometer into voltmeter, we connect a

Question # 19

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

Question # 20

magnetic field is a:

Question # 21

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 # 22

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

Question # 23

The SI unit of magnetic flux is.

Question # 24

The force experienced by charged particle is maximum, if it moves

Question # 25

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

Question # 26

A resistance used in voltmeter is called

Question # 27

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 # 28

When some compass needles are placed on a card board along a circle with the center at the wire, they will

Question # 29

When current passes through a solenoid coil, it behaves like a

Question # 30

The magnetic field inside a solenoid can be increased by:

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The SI unit of magnetic permeability is
A. WB A-1m-1
B. WB mA-1
C. WB Am-1
D. None of these
2 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:
A. -y direction
B. +y direction
C. +z direction
D. -z direction
3 Centripetal force for electron is given by
A. mv2/ r
B. mv / r2
C. mv2/ r
D. mr2/ v
4 The SI unit of magnetic induction is tesla which is equal to
A. Newton/ampere-meter or N/A-m
B. Newton/ampere2-meter or N/A2-m
C. Newton/ampere2-meter2 or N/A2-m2
D. Newton/ampere2-meter2or N/A2-m2
5 Magnetic lines of force:
A.

Cannot intersect at all

B.

Intersect at infinity

C.

Intersect within magnet

D.

Intersect at Neutral Point
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 magnetic field outside the solenoid due to current is
A. strong
B. zero
C. weak
D. uniform
8 Resistance is measured in
A. volts
B. ampere
C. ohm
D. watt
9 41 The force experience, when proton projected in a magnetic field with velocity 'v' is
A. +e(v x B)
B. -C(V x B)
C. +e2(v x B)
D. -e(v2x B)
10 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

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