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

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

Question # 2

The current is measured in

Question # 3

The SI unit of magnetic flux is

Question # 4

The field around a moving charge is called

Question # 5

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

Question # 6

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

Question # 7

Resistance is measured in

Question # 8

The force experienced by charged particle is maximum, if it moves

Question # 9

The SI unit of flux density is

Question # 10

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

Question # 11

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

Question # 12

A resistance used in galvanometer to make it voltmeter is called

Question # 13

The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed

Question # 14

The magnetic field outside the solenoid due to current is

Question # 15

A current carrying conductor sets up its own:

Question # 16

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

Question # 17

Amperean path is a:

Question # 18

When charged particle is projected perpendicular to a uniform magnetic field its trajectory is

Question # 19

The direction of lines of force depends upon the direction of

Question # 20

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

Question # 21

The angle of deflection of coil can be measured by the

Question # 22

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

Question # 23

To convert galvanometer into ammeter we connect

Question # 24

A solenoid is a coil of wire which is:

Question # 25

The gavanometer constant of a moving coil galvanometer is given by

Question # 26

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

Question # 27

The unit of flux density is also given by

Question # 28

The SI unit of magnetic permeability is

Question # 29

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

Question # 30

When some compass needles are placed on a card board along a circle with the center at the wire, they will

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 F = I(L x B) is a
A. vector
B. scalar
C. unit vector
D. none of these
2 The sources of magnetic field are
A. isolated magnetic poles
B. charges at rest
C. charges in motion
D. none of these
3 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
4 Magnetic lines of force:
A.

Cannot intersect at all

B.

Intersect at infinity

C.

Intersect within magnet

D.

Intersect at Neutral Point
5 The strength of magnetic field around the current conductor is
A. Smaller near the conductor
B. Greater near the conductor
C. Greater at the large distance from the conductor
D. Constant near and away from the conductor
6 The CRO is used for displaying the waveform of a given
A. current
B. voltage
C. both of them
D. none of them
7 Electron gun consist of
A. three anodes
B. heating cathode
C. three anodes
D. three anodes , heating cathode, grid
8 A full-scale deflection is obtained in a galvanometer with a current of few
A. ampere
B. volts
C. milliampere
D. ohm
9 The magnetic field outside the solenoid due to current is
A. strong
B. zero
C. weak
D. uniform
10 It is customary represent a current flowing towards the reader by a symbol
A. (x)
B. (+)
C. (.)
D. (-)

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