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 force acting on a charge moving in a magnetic field

Question # 2

The torque per unit twist of coil is called

Question # 3

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

Question # 4

The most suitable material for permanent magnet is

Question # 5

The current sensitivity of the galvanometer is

Question # 6

The gavanometer constant of a moving coil galvanometer is given by

Question # 7

Ammeter is used to measure

Question # 8

The sources of magnetic field are

Question # 9

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

Question # 10

The unit of magnetic flux is

Question # 11

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 # 12

The permeability of free space is measured in:

Question # 13

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

Question # 14

The vector representation of force experience give the direction of

Question # 15

The magnetic field inside a solenoid can be increased by:

Question # 16

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

Question # 17

If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made

Question # 18

Which one of the following relations is correct?

Question # 19

Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:

Question # 20

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

Question # 21

Magnetic lines of force:

Question # 22

A resistance used in galvanometer to make it voltmeter is called

Question # 23

The magnetic field outside the solenoid due to current is

Question # 24

The unit of flux density is also given by

Question # 25

The SI unit of magnetic permeability is

Question # 26

Which is modified form of galvanometer

Question # 27

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

Question # 28

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

Question # 29

magnetic field is a:

Question # 30

Avo-meter is used of measure the

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
2 if the field is directed along the normal to the area, then flux is:
A.

Maximum

B.

Equal to zero

C.

Equal to BA

D.

Minimum
3 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
4 Lorentz force is defined as
A. q(E + V x B)
B. q(E x B + V)
C. q(E x V + B)
D. q(E x B)
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 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
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 The SI unit of magnetic flux is
A. NmA-2
B. NmA-1
C. NAm-1
D. Nm2A-1
9 A resistance used in voltmeter is called
A. shunt resistance
B. high resistance
C. low resistance
D. zero resistance
10 A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is
A. minimum
B. maximum
C. zero
D. none of these

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