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

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

Question # 2

For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as

Question # 3

magnetic field is a:

Question # 4

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

Question # 5

The unit of flux density is also given by

Question # 6

In the region surrounding a current carrying wire:

Question # 7

F = I(L x B) is a

Question # 8

The SI unit of magnetic permeability is

Question # 9

Avo-meter is used of measure the

Question # 10

The unit of magnetic flux is

Question # 11

Ammeter is used to measure

Question # 12

The torque per unit twist of coil is called

Question # 13

Current is measured in

Question # 14

Centripetal force for electron is given by

Question # 15

The field around a moving charge is called

Question # 16

The vector representation of force experience give the direction of

Question # 17

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 # 18

Lorentz force is defined as

Question # 19

Flurescent screen is a screen where visible spot

Question # 20

The force acting on a charge moving in a magnetic field

Question # 21

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

Question # 22

The direction of lines of force depends upon the direction of

Question # 23

The SI unit of magnetic induction is

Question # 24

When current passes through a solenoid coil, it behaves like a

Question # 25

Charge to mass ratio (e/m) of an electron is given by the relation

Question # 26

The voltage increases linearly with

Question # 27

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 # 28

The SI unit of magnetic flux is

Question # 29

A resistance used in galvanometer to make it voltmeter is called

Question # 30

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A long wire wound tightly on a cylindrical core is called:
A. Potentiometer
B. Solenoid
C. Toroid
D. Wheat and stone bridge
2 When the charged particle is projected at right angles to the field, then experienced by it will be:
A. Maximum
B. Zero
C. qvB
D. Both (A) and (B)
3 The unit of magnetic flux is
A. Weber-m2
B. Weber-m3
C. Henry
D. Weber
4 Ammeter is used to measure
A. voltage
B. resistance
C. voltage and current
D. current
5 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
D. None of these
6 Charge to mass ratio (e/m) of an electron is given by the relation
A. e/m = 2V/Br2
B. e/m = 2V/B2r
C. e/m = 2V/B2r2
D. e/m = V/2B2r2
7 Magnetic induction is also called as:
A.

Ampere’s law

B.

Faraday’s law

C.

Lenz’s law

D.

Newton’s law
8 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
9 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
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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