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

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

Question # 2

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

Question # 3

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

Question # 4

Flurescent screen is a screen where visible spot

Question # 5

The SI unit of flux density is.

Question # 6

CRO deflects the beam of

Question # 7

The current is measured in

Question # 8

The direction of lines of force depends upon the direction of

Question # 9

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

Question # 10

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

Question # 11

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 # 12

The force acting on a charge moving in a magnetic field

Question # 13

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

Question # 14

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

Question # 15

A long wire wound tightly on a cylindrical core is called:

Question # 16

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

Question # 17

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 # 18

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

Question # 19

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

Question # 20

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

Question # 21

A galvanometer in which the coil comes to rest quickly after the current passed through it, or the current stopped form flowing through it, is called

Question # 22

A solenoid is a coil of wire which is:

Question # 23

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

Question # 24

In a moving coil galvanometer, the deflecting couple depends upon

Question # 25

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

Question # 26

The permeability of free space is measured in:

Question # 27

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

Question # 28

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

Question # 29

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

Question # 30

The SI unit of magnetic induction is

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A field is uniform and much stronger:
A.

Inside a long solenoid

B.

Outside a long solenoid

C.

At the end of a long solenoid

D.

At the central point of long solenoid
2 The magnetic field in the middle of a solenoid due to current is
A. weak
B. strong and uniform
C. none-uniform
D. zero
3 Which is modified form of galvanometer
A. potentiometer
B. battery
C. voltmeter
D. slide wire bridge
4 The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called
A. magnetic flux
B. magnetic flux density
C. magnetic induction
D. magnetic field intensity
5 The sources of magnetic field are
A. isolated magnetic poles
B. charges at rest
C. charges in motion
D. none of these
6 The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon
A. Heating effect of current
B. Chemical effect of current
C. Magnetic effect of current
D. Electromagnetic effect of current
7 Resistance is measured in
A. volts
B. ampere
C. ohm
D. watt
8 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
9 magnetic field is a:
A.

Vector quantity

B.

Scalar quantity

C.

Scalar as well as scalar quantity

D.

Any of (A) or (B)
10 The SI unit of magnetic induction is
A. Gauses
B. Tesla
C. Weber
D. Weber2

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