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

Question # 2

The magnetic field inside a solenoid can be increased by:

Question # 3

The force acting on a charge moving in a magnetic field

Question # 4

Current is measured in

Question # 5

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

Question # 6

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

Question # 7

Avo-meter is used of measure the

Question # 8

The magnetic field in the middle of a solenoid due to current is

Question # 9

The vector representation of force experience give the direction of

Question # 10

The permeability of free space is measured in:

Question # 11

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

Question # 12

Magnetic induction is also called as:

Question # 13

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 # 14

A beam of electrons is provided by an

Question # 15

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

Question # 16

The SI unit of magnetic flux is

Question # 17

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

Question # 18

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

Question # 19

magnetic field is a:

Question # 20

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

Question # 21

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

Question # 22

The SI unit of magnetic permeability is

Question # 23

A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is

Question # 24

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 # 25

Method "lamp and scale arrangement" used to measure the

Question # 26

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

Question # 27

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

Question # 28

Strength of magnetic field is measured in SI units, in:

Question # 29

The most suitable material for permanent magnet is

Question # 30

The SI unit of flux density is.

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Galvanometer is a device used for the detection of
A. voltage
B. current
C. temperature
D. pressure
2 The torque per unit twist of coil is called
A. proportionality constant
B. gravitational constant
C. boltzman constant
D. coupling constant
3 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
4 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
5 The magnetic field outside the solenoid due to current is
A. strong
B. zero
C. weak
D. uniform
6 The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed
A. parallel to the field
B. Perpendicular to the field
C. At an angle of 45 to the field
D. None of the above
7 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
A. 5N
B. 4N
C. 1.5N
D. 6N
8 Centripetal force for electron is given by
A. mv2/ r
B. mv / r2
C. mv2/ r
D. mr2/ v
9 The unit of magnetic flux is
A. Weber-m2
B. Weber-m3
C. Henry
D. Weber
10 A current carrying conductor sets up its own:
A.

Electric field

B.

Nuclear field

C.

Magnetic field

D.

Both (A) and (C)

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