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

Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:

Question # 2

The unit of magnetic flux is

Question # 3

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

Question # 4

A resistance used in voltmeter is called

Question # 5

The angle of deflection of coil can be measured by the

Question # 6

A resistance used in galvanometer to make it voltmeter is called

Question # 7

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

Question # 8

When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be

Question # 9

The strength of magnetic field around the current conductor is

Question # 10

The SI unit of magnetic flux is

Question # 11

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

Question # 12

A beam of electrons is provided by an

Question # 13

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:

Question # 14

The pointer of a magnetic compass:

Question # 15

Method "lamp and scale arrangement" used to measure the

Question # 16

In the region surrounding a current carrying wire:

Question # 17

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

Question # 18

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

Question # 19

The gavanometer constant of a moving coil galvanometer is given by

Question # 20

The force exerted on a conductor of length L, carrying current I when placed in a magnetic field B is given by

Question # 21

Weber is a unit of

Question # 22

For the conversion of galvanometer into voltmeter, we connect a

Question # 23

Centripetal force for electron is given by

Question # 24

The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon

Question # 25

The most suitable material for permanent magnet is

Question # 26

F = I(L x B) is a

Question # 27

The direction of lines of force depends upon the direction of

Question # 28

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

Question # 29

The current sensitivity of the galvanometer is

Question # 30

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Magnetic induction is also called as:
A.

Ampere’s law

B.

Faraday’s law

C.

Lenz’s law

D.

Newton’s law
2 The vector representation of force experience give the direction of
A. magnetic field
B. current
C. length of conductor
D. force
3 To convert galvanometer into ammeter we connect
A. small resistance in parallel with galvanometer
B. small resistance in series with galvanometer
C. high resistance in series with galvanometer
D. high resistance in parallel with galvanometer
4 The direction of lines of force depends upon the direction of
A. voltage
B. current
C. charges
D. none of these
5 A resistance used in galvanometer to make it voltmeter is called
A. shunt resistance
B. high resistance
C. zero resistance
D. none of these
6 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
7 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)
8 The SI unit of magnetic permeability is
A. WB A-1m-1
B. WB mA-1
C. WB Am-1
D. None of these
9 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
10 When current passes through a solenoid coil, it behaves like a
A. loop
B. circle
C. bar magnet
D. none of these

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