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 torque per unit twist of coil is called

Question # 2

The current is measured in

Question # 3

the current is pass through the straight wire. The magnetic field established around it has its lines of force:

Question # 4

A magnetic force on an electron travelling with 108ms-1parallel to a field of strength 1 Wb m-2is

Question # 5

Avo-meter is used of measure the

Question # 6

The vector representation of force experience give the direction of

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

The unit of magnetic flux is

Question # 11

For the conversion of galvanometer into voltmeter, we connect a

Question # 12

The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called

Question # 13

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

Question # 14

The current sensitivity of the galvanometer is

Question # 15

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

Question # 16

The unit of flux density is also given by

Question # 17

A current carrying conductor sets up its own:

Question # 18

Magnetic flux and flux density are related by

Question # 19

Which one of the following relations is correct?

Question # 20

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

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

CRO deflects the beam of

Question # 23

Galvanometer is a device used for the detection of

Question # 24

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

Question # 25

The sources of magnetic field are

Question # 26

The SI unit of magnetic flux is

Question # 27

Method "lamp and scale arrangement" used to measure the

Question # 28

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

Question # 29

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

Question # 30

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The SI unit of flux density is
A. Newton/Amp-meter
B. Newton-m/Ampere
C. Newton-m/Amp2
D. Newton-Amp/meter
2 Flurescent screen is a screen where visible spot
A. vanishes
B. is made
C. becomes small and large
D. none of these
3 The magnetic field outside the solenoid due to current is
A. strong
B. zero
C. weak
D. uniform
4 magnetic field is a:
A.

Vector quantity

B.

Scalar quantity

C.

Scalar as well as scalar quantity

D.

Any of (A) or (B)
5 The working of galvanometer depends upon torque exerted on a current carrying coil in
A. magnetic field
B. electric field
C. gravitational field
D. nuclear field
6 In a moving coil galvanometer, the deflecting couple depends upon
A. area of the coil
B. number of turns of coil
C. value of magnetic field
D. all of the above
7 When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be
A. changed
B. zero
C. unchanged
D. none of these
8 The most suitable material for permanent magnet is
A. cobalt
B. iron
C. steel
D. alaminium
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 The magnetic field inside a solenoid can be increased by:
A. Increasing n
B. Decreasing I
C. Increasing I
D. By using iron core within solenoid

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