ECAT Pre Engineering Physics Chapter 14 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 14 Electromagnetism

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 14 Electromagnetism

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Physics ECAT Pre Engineering Chapter 14 Electromagnetism

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Question # 1

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 # 2

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

Question # 3

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

Question # 4

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

Question # 5

How many number of anodes used in electron gun

Question # 6

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 # 7

The vector representation of force experience give the direction of

Question # 8

The current sensitivity of the galvanometer is

Question # 9

A current carrying conductor sets up its own:

Question # 10

The field around a moving charge is called

Question # 11

In a moving coil galvanometer, the deflecting couple depends upon

Question # 12

When the waveform of one voltage is increasing and that of second is decreasing and vice versa, then phase difference between these voltage is

Question # 13

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

Question # 14

NmA-1 is commonly called:

Question # 15

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The SI unit of magnetic flux is
A. NmA-2
B. NmA-1
C. NAm-1
D. Nm2A-1
2 Galvanometer is a device used for the detection of
A. voltage
B. current
C. temperature
D. pressure
3 The SI unit of magnetic induction is tesla which is equal to
A. Newton/ampere-meter or N/A-m
B. Newton/ampere2-meter or N/A2-m
C. Newton/ampere2-meter2 or N/A2-m2
D. Newton/ampere2-meter2or N/A2-m2
4 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
5 The magnetic field outside the solenoid due to current is
A. strong
B. zero
C. weak
D. uniform
6 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
7 Centripetal force for electron is given by
A. mv2/ r
B. mv / r2
C. mv2/ r
D. mr2/ v
8 In order to make a voltmeter, high resistance is connected with galvanometer, in
A. perpendicular
B. may be paralled or pendicular
C. series
D. none of these
9 The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed
A. parallel to the field
B. Perpendicular to the field
C. At an angle of 45 to the field
D. None of the above
10 The sources of magnetic field are
A. isolated magnetic poles
B. charges at rest
C. charges in motion
D. none of these

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