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 field around a moving charge is called

Question # 2

Method "lamp and scale arrangement" used to measure the

Question # 3

The most suitable material for permanent magnet is

Question # 4

The SI unit of magnetic flux is

Question # 5

The strength of magnetic field around the current conductor is

Question # 6

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

Question # 7

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

Question # 8

The SI unit of magnetic induction is

Question # 9

In a moving coil galvanometer, the deflecting couple depends upon

Question # 10

In the formula B= µ̻ nl, the symbol n denotes:

Question # 11

The torque per unit twist of coil is called

Question # 12

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 # 13

Galvanometer is a device used for the detection of

Question # 14

The direction of lines of force depends upon the direction 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 voltage increases linearly with

Question # 17

The SI unit of flux density is.

Question # 18

A resistance used in galvanometer to make it voltmeter is called

Question # 19

The CRO is used for displaying the waveform of a given

Question # 20

The angle of deflection of coil can be measured by the

Question # 21

Amperean path is a:

Question # 22

A field is uniform and much stronger:

Question # 23

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

Question # 24

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

Question # 25

The magnetic field outside the solenoid due to current is

Question # 26

The current is measured in

Question # 27

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 # 28

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

Question # 29

Tesla is the unit of

Question # 30

A resistance used in voltmeter is called

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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

Amperean path is a:
A.

Closed path

B.

Rectangular path

C.

Circular path

D.

Any of above
3 A current carrying conductor sets up its own:
A.

Electric field

B.

Nuclear field

C.

Magnetic field

D.

Both (A) and (C)
4 Centripetal force for electron is given by
A. mv2/ r
B. mv / r2
C. mv2/ r
D. mr2/ v
5 A relationship between Gauses of magnetic induction and Tesla(T) is given by
A. G 10-3T
B. G = 10-2T
C. G = 10-4T
D. G = 10-1T
6 The gavanometer constant of a moving coil galvanometer is given by
A. K=BAN/C
B. K=BN/CA
C. K=NAC/B
D. K=C/BAN
7 A voltmeter is used to measure the
A. potential difference
B. current
C. temperature
D. resistance
8 The field around a moving charge is called
A. magnetic field
B. conservative field
C. non-conservative field
D. none of these
9 The current is measured in
A. volts
B. watt
C. ampere
D. ohm
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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