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

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

Question # 2

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

Question # 3

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 # 4

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

Question # 5

If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made

Question # 6

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

Question # 7

Current is measured in

Question # 8

The sources of magnetic field are

Question # 9

The SI unit of magnetic permeability is

Question # 10

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

Question # 11

The gavanometer constant of a moving coil galvanometer is given by

Question # 12

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

Question # 13

The direction of lines of force depends upon the direction of

Question # 14

Galvanometer is a device used for the detection of

Question # 15

The magnetic field inside a solenoid can be increased by:

Question # 16

To convert galvanometer into ammeter we connect

Question # 17

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

Question # 18

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

Question # 19

Electron gun consist of

Question # 20

magnetic field is a:

Question # 21

Amperean path is a:

Question # 22

The SI unit of magnetic induction is

Question # 23

Which is modified form of galvanometer

Question # 24

The force acting as one meter length of the conductor placed at right angle to the magnetic field, when one A current is passing through it, defines the

Question # 25

Tesla is the unit of

Question # 26

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 # 27

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

Question # 28

A field is uniform and much stronger:

Question # 29

The field around a moving charge is called

Question # 30

The unit of flux density is also given by

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The current sensitivity of the galvanometer is
A. C/BAN
B. BAN/C
C. CAN/B
D. CBN/A
2 The SI unit of flux density is.
A. Tesla
B. Weber
C. Gaun
D. Weber/meter
3 The magnetic field outside the solenoid due to current is
A. strong
B. zero
C. weak
D. uniform
4 The force experienced by charged particle is maximum, if it moves
A. parallel to magnetic field
B. perpendicular to magnetic field
C. opposite to the magnetic field
D. none of these
5 When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into
A. Voltmeter
B. Avometer
C. Ammeter
D. None of these
6 Galvanometer is a device used for the detection of
A. voltage
B. current
C. temperature
D. pressure
7 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
8 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
9 When current passes through a solenoid coil, it behaves like a
A. loop
B. circle
C. bar magnet
D. none of these
10 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

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