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

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

Question # 2

The magnetic field outside the solenoid due to current is

Question # 3

Magnetic induction is also called as:

Question # 4

The CRO is used for displaying the waveform of a given

Question # 5

Method "lamp and scale arrangement" used to measure the

Question # 6

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

Question # 7

The SI unit of magnetic flux is.

Question # 8

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

Question # 9

A beam of electrons is provided by an

Question # 10

Centripetal force for electron is given by

Question # 11

Total number of turns on 0.15 m length solenoid is 300. the value of n is:

Question # 12

The most suitable material for permanent magnet is

Question # 13

The permeability of free space is measured in:

Question # 14

The SI unit of flux density is

Question # 15

The torque per unit twist of coil is called

Question # 16

The vector representation of force experience give the direction of

Question # 17

if the field is directed along the normal to the area, then flux is:

Question # 18

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

Question # 19

Avo-meter is used of measure the

Question # 20

The voltage increases linearly with

Question # 21

A meter wire carraying a current of 2A is at right angle to the uniform magnetic field of 0.5 Weber/m2The force on the wire is

Question # 22

The SI unit of magnetic induction is tesla which is equal to

Question # 23

In the formula B= µ̻ nl, the symbol n denotes:

Question # 24

The current is measured in

Question # 25

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

Question # 26

A resistance used in voltmeter is called

Question # 27

Resistance is measured in

Question # 28

The field around a moving charge is called

Question # 29

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

Question # 30

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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)
2 The galvanometer can be made sensitive if the value of the factor C/BAN is
A. constant
B. small
C. large
D. none of these
3 Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:
A.

Thumb

B.

Curled fingers

C.

Middle finger

D.

Arm of right hand
4

Amperean path is a:
A.

Closed path

B.

Rectangular path

C.

Circular path

D.

Any of above
5 When charged particle is projected perpendicular to a uniform magnetic field its trajectory is
A. circular
B. elliptical
C. cycloid
D. straight line
6 A full-scale deflection is obtained in a galvanometer with a current of few
A. ampere
B. volts
C. milliampere
D. ohm
7 'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?
A. 0
B. 1
C. 0.5
D. -1
8 The magnetic force exerted on an electron moving with velocity 'v' at right angle to the magnetic field is given by
A. F=eVB
B. F=e2V/B
C. F=e/VB
D. F=B2/ev
9 Galvanometer is a device used for the detection of
A. voltage
B. current
C. temperature
D. pressure
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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