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

Which is modified form of galvanometer

Question # 2

The SI unit of magnetic flux is

Question # 3

Avo-meter is used of measure the

Question # 4

A galvanometer is an instrument used to

Question # 5

Weber is a unit of

Question # 6

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

Question # 7

The sources of magnetic field are

Question # 8

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 # 9

Current is measured in

Question # 10

Magnetic flux and flux density are related by

Question # 11

The e/m of an electron moving in a circular path in a magnetic field is equal to

Question # 12

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 # 13

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

Question # 14

Galvanometer is a device used for the detection of

Question # 15

'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?

Question # 16

The torque per unit twist of coil is called

Question # 17

A current carrying conductor sets up its own:

Question # 18

The direction of lines of force depends upon the direction of

Question # 19

The angle of deflection of coil can be measured by the

Question # 20

A voltmeter is used to measure the

Question # 21

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

Question # 22

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 # 23

The current is measured in

Question # 24

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

Question # 25

The vector representation of force experience give the direction of

Question # 26

The field around a moving charge is called

Question # 27

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

Question # 28

In the region surrounding a current carrying wire:

Question # 29

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 # 30

The CRO is used for displaying the waveform of a given

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 The SI unit of flux density is.
A. Tesla
B. Weber
C. Gaun
D. Weber/meter
3 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
4 Ammeter is used to measure
A. voltage
B. resistance
C. voltage and current
D. current
5 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
6 It is customary represent a current flowing towards the reader by a symbol
A. (x)
B. (+)
C. (.)
D. (-)
7 The magnetic field inside a solenoid can be increased by:
A. Increasing n
B. Decreasing I
C. Increasing I
D. By using iron core within solenoid
8

Amperean path is a:
A.

Closed path

B.

Rectangular path

C.

Circular path

D.

Any of above
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 The voltage increases linearly with
A. time
B. velocity
C. acceleration
D. torque

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