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 field outside the solenoid due to current is

Question # 2

The strength of magnetic field around the current conductor is

Question # 3

The magnetic field inside a solenoid can be increased by:

Question # 4

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

Question # 5

The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by

Question # 6

The unit of magnetic flux is

Question # 7

The working of galvanometer depends upon torque exerted on a current carrying coil in

Question # 8

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

Question # 9

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

Question # 10

The field around a moving charge is called

Question # 11

For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as

Question # 12

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

Question # 13

The vector representation of force experience give the direction of

Question # 14

In a moving coil galvanometer, the deflecting couple depends upon

Question # 15

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

Question # 16

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

Question # 17

The gavanometer constant of a moving coil galvanometer is given by

Question # 18

The CRO is used for displaying the waveform of a given

Question # 19

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

Question # 20

The force acting on a charge moving in a magnetic field

Question # 21

If current through conductor is 1 A and length of conductor is 1m placed at right angle to the magnetic field, then the strength of magnetic field is

Question # 22

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

Question # 23

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

Question # 24

NmA-1 is commonly called:

Question # 25

A full-scale deflection is obtained in a galvanometer with a current of few

Question # 26

The voltage increases linearly with

Question # 27

The SI unit of magnetic flux is

Question # 28

Which is modified form of galvanometer

Question # 29

The pointer of a magnetic compass:

Question # 30

The most suitable material for permanent magnet is

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 41 The force experience, when proton projected in a magnetic field with velocity 'v' is
A. +e(v x B)
B. -C(V x B)
C. +e2(v x B)
D. -e(v2x B)
2 The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by
A. F =q(v/B)
B. F=q2(v x B)
C. F=q(v x B)
D. F= vx B
3 magnetic field is a:
A.

Vector quantity

B.

Scalar quantity

C.

Scalar as well as scalar quantity

D.

Any of (A) or (B)
4 The field around a moving charge is called
A. magnetic field
B. conservative field
C. non-conservative field
D. none of these
5 A field is uniform and much stronger:
A.

Inside a long solenoid

B.

Outside a long solenoid

C.

At the end of a long solenoid

D.

At the central point of long solenoid
6 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
7 The most suitable material for permanent magnet is
A. cobalt
B. iron
C. steel
D. alaminium
8 A shunt resistance parallel to the galvanometer is used to convert it into
A. avometer
B. millimeter
C. voltmeter
D. none of these
9 At a given instant, a photon moves in +x direction in a region where there magnetic field in -z direction. The magnetic force on the proton will be the:
A. -y direction
B. +y direction
C. +z direction
D. -z direction
10 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

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