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

The SI unit of magnetic flux is.

Question # 3

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

Question # 4

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

Question # 5

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 # 6

The unit of magnetic flux is

Question # 7

Amperean path is a:

Question # 8

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

Question # 9

Weber is a unit of

Question # 10

The permeability of free space is measured in:

Question # 11

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

Question # 12

Magnetic lines of force:

Question # 13

Magnetic flux and flux density are related by

Question # 14

A voltmeter is used to measure the

Question # 15

The force acting on a charge moving in a magnetic field

Question # 16

The strength of magnetic field around the current conductor is

Question # 17

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

Question # 18

The torque per unit twist of coil is called

Question # 19

Flurescent screen is a screen where visible spot

Question # 20

How many number of anodes used in electron gun

Question # 21

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

Question # 22

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

Question # 23

The direction of lines of force depends upon the direction of

Question # 24

A resistance used in voltmeter is called

Question # 25

Resistance is measured in

Question # 26

A solenoid is a coil of wire which is:

Question # 27

The CRO is used for displaying the waveform of a given

Question # 28

Which is modified form of galvanometer

Question # 29

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

Question # 30

The SI unit of flux density is

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Resistance is measured in
A. volts
B. ampere
C. ohm
D. watt
2 Magnetic induction is also called as:
A.

Ampere’s law

B.

Faraday’s law

C.

Lenz’s law

D.

Newton’s law
3 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
4 Method "lamp and scale arrangement" used to measure the
A. angle of deflection
B. restoring torque
C. magnetic field strength
D. current
5 In the formula B= µ̻ nl, the symbol n denotes:
A.

Total number of turns of solenoid

B.

Number of turns per unit length

C.

Number of turns per unit volume

D.

Numbers of turns per unit area
6 The permeability of free space is measured in:
A. Wb/Am
B. Wb A/m
C. Am/Wb
D. m/Web A
7 The magnetic force exerted on an electron moving with velocity 'v' at right angle to the magnetic field is given by
A. F=eVB
B. F=e2V/B
C. F=e/VB
D. F=B2/ev
8 (CRO) Cathode ray oscilloscope is a device used for high speed
A. velocity
B. graph plotting
C. time-velocity
D. none of these
9 Galvanometer is a device used for the detection of
A. voltage
B. current
C. temperature
D. pressure
10 The SI unit of magnetic induction is
A. Gauses
B. Tesla
C. Weber
D. Weber2

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