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

Question # 2

A solenoid is a coil of wire which is:

Question # 3

NmA-1 is commonly called:

Question # 4

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

Question # 5

The strength of magnetic field around the current conductor is

Question # 6

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

Question # 7

A beam of electrons is provided by an

Question # 8

The current sensitivity of the galvanometer is

Question # 9

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

Question # 10

The magnetic field outside the solenoid due to current is

Question # 11

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

Question # 12

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

Question # 13

A long wire wound tightly on a cylindrical core is called:

Question # 14

The SI unit of magnetic flux is.

Question # 15

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 # 16

Weber is a unit of

Question # 17

In the region surrounding a current carrying wire:

Question # 18

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

Question # 19

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 # 20

The SI unit of flux density is.

Question # 21

If volume of wire is 'AL' and there are 'n' numbers of charge carriers per unit volume, then the total number of charge carriers are

Question # 22

'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?

Question # 23

The angle of deflection of coil can be measured by the

Question # 24

A current carrying conductor sets up its own:

Question # 25

The SI unit of flux density is

Question # 26

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

Question # 27

The unit of flux density is also given by

Question # 28

A voltmeter is used to measure the

Question # 29

The magnetic field inside a solenoid can be increased by:

Question # 30

In a straight current carrying conductor, the direction of magnetic field can be found by

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A full-scale deflection is obtained in a galvanometer with a current of few
A. ampere
B. volts
C. milliampere
D. ohm
2 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
3 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
4 The force acting on a charge moving in a magnetic field
A. is perpendicular to the both magnetic field and direction of motion
B. is proportional to the magnetic of charges
C. vanishes when the motion is directly opposite to the direction of field
D. all of the above
5 The SI unit of magnetic flux is
A. NmA-2
B. NmA-1
C. NAm-1
D. Nm2A-1
6 The angle of deflection of coil can be measured by the
A. one method
B. three method
C. two method
D. none of these
7 Magnetic lines of force:
A.

Cannot intersect at all

B.

Intersect at infinity

C.

Intersect within magnet

D.

Intersect at Neutral Point
8 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
A. dead beat galvanometer
B. stable galvanometer
C. shunt galvanometer
D. sensitive galvanomter
9 The torque per unit twist of coil is called
A. proportionality constant
B. gravitational constant
C. boltzman constant
D. coupling constant
10 Magnetic induction is also called as:
A.

Ampere’s law

B.

Faraday’s law

C.

Lenz’s law

D.

Newton’s law

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