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

Current is measured in

Question # 2

Method "lamp and scale arrangement" used to measure the

Question # 3

The SI unit of magnetic induction is

Question # 4

It is customary represent a current flowing towards the reader by a symbol

Question # 5

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

Question # 6

The magnetic field inside a solenoid can be increased by:

Question # 7

The current sensitivity of the galvanometer is

Question # 8

Centripetal force for electron is given by

Question # 9

Which one of the following relations is correct?

Question # 10

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

Question # 11

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

Question # 12

In order to make a voltmeter, high resistance is connected with galvanometer, in

Question # 13

The current in microamperes required to produce one millimeter deflection on a scale placed one meter away from the mirror of the galvanometer, defined the sensitivity of

Question # 14

Avo-meter is used of measure the

Question # 15

The direction of lines of force depends upon the direction of

Question # 16

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

Question # 17

The vector representation of force experience give the direction of

Question # 18

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

Question # 19

The SI unit of magnetic flux is.

Question # 20

The magnetic field outside the solenoid due to current is

Question # 21

Total number of turns on 0.15 m length solenoid is 300. the value of n is:

Question # 22

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:

Question # 23

The voltage increases linearly with

Question # 24

When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into

Question # 25

How many number of anodes used in electron gun

Question # 26

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

Question # 27

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

Question # 28

The SI unit of magnetic flux is

Question # 29

The torque per unit twist of coil is called

Question # 30

The angle of deflection of coil can be measured by the

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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)
2 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
3 The CRO is used for displaying the waveform of a given
A. current
B. voltage
C. both of them
D. none of them
4 When charged particle is projected perpendicular to a uniform magnetic field its trajectory is
A. circular
B. elliptical
C. cycloid
D. straight line
5 The force experienced by an electron projected in a magnetic field B with a velocity V is given by
A. F=e(V x B)
B. F= -e(V x B)
C. F= e(B x V)
D. Both a and c
6 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
A. F = B2
B. F = 0
C. F = B
D. F = B/2
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:
A. Becomes Half
B. Becomes double
C. Is not affected
D. Becomes one fourth
8 The current in microamperes required to produce one millimeter deflection on a scale placed one meter away from the mirror of the galvanometer, defined the sensitivity of
A. ammeter
B. voltmeter
C. galvanometer
D. avo-meter
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 voltmeter is used to measure the
A. potential difference
B. current
C. temperature
D. resistance

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