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

Lorentz force is defined as

Question # 2

A solenoid is a coil of wire which is:

Question # 3

The SI unit of flux density is

Question # 4

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

Question # 5

Which one of the following relations is correct?

Question # 6

Magnetic induction is also called as:

Question # 7

If the number of turns of a solenoid (carrying a steady current I) is doubled without changing the length of a solenoid, then magnetic field:

Question # 8

Method "lamp and scale arrangement" used to measure the

Question # 9

The permeability of free space is measured in:

Question # 10

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

Question # 11

Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as

Question # 12

In a moving coil galvanometer, the deflecting couple depends upon

Question # 13

The SI unit of magnetic flux is

Question # 14

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

Question # 15

(CRO) Cathode ray oscilloscope is a device used for high speed

Question # 16

Current is measured in

Question # 17

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

Question # 18

The SI unit of flux density is.

Question # 19

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

Question # 20

The gavanometer constant of a moving coil galvanometer is given by

Question # 21

Ammeter is used to measure

Question # 22

When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be

Question # 23

Magnetic flux and flux density are related by

Question # 24

A galvanometer is an instrument used to

Question # 25

Resistance is measured in

Question # 26

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

Question # 27

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

Question # 28

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

Question # 29

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

Question # 30

CRO deflects the beam of

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The permeability of free space is measured in:
A. Wb/Am
B. Wb A/m
C. Am/Wb
D. m/Web A
2 When current passes through a solenoid coil, it behaves like a
A. loop
B. circle
C. bar magnet
D. none of these
3

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

Circular and endless

B.

Oval in shape and endless

C.

Straight

D.

Parabolic
4 Magnetic induction is also called as:
A.

Ampere’s law

B.

Faraday’s law

C.

Lenz’s law

D.

Newton’s law
5 A galvanometer is an instrument used to
A. measure voltage across a circuit
B. detect current in a circuit
C. measure current flowing through a circuit
D. none of these
6 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)
7 Avo-meter is used of measure the
A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance
8 For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as
A. modification
B. voltage
C. current
D. resistance
9 In a straight current carrying conductor, the direction of magnetic field can be found by
A. right hand rule
B. left hand rule
C. head to tall rule
D. none of these
10

Amperean path is a:
A.

Closed path

B.

Rectangular path

C.

Circular path

D.

Any of above

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