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

In the region surrounding a current carrying wire:

Question # 2

The field around a moving charge is called

Question # 3

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

Question # 4

F = I(L x B) is a

Question # 5

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

Question # 6

The angle of deflection of coil can be measured by the

Question # 7

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

Question # 8

A charged particle moving at right angle to the magnetic field will experience

Question # 9

The direction of lines of force depends upon the direction of

Question # 10

if the field is directed along the normal to the area, then flux is:

Question # 11

The current sensitivity of the galvanometer is

Question # 12

A field is uniform and much stronger:

Question # 13

Magnetic induction is also called as:

Question # 14

The CRO deflects the beam of electrons, when they passes through uniform

Question # 15

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

Question # 16

The SI unit of magnetic flux is.

Question # 17

For the conversion of galvanometer into voltmeter, we connect a

Question # 18

The vector representation of force experience give the direction of

Question # 19

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

Question # 20

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

Question # 21

Resistance is measured in

Question # 22

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

Question # 23

CRO deflects the beam of

Question # 24

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

Question # 25

The most suitable material for permanent magnet is

Question # 26

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

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

A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is

Question # 29

Which is modified form of galvanometer

Question # 30

The unit of magnetic flux is

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Centripetal force for electron is given by
A. mv2/ r
B. mv / r2
C. mv2/ r
D. mr2/ v
2 Strength of magnetic field is measured in SI units, in:
A. N
B. N/Am
C. Am/N
D. Nm/A
3 Resistance is measured in
A. volts
B. ampere
C. ohm
D. watt
4 Ammeter is used to measure
A. voltage
B. resistance
C. voltage and current
D. current
5 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
6 When the waveform of one voltage is increasing and that of second is decreasing and vice versa, then phase difference between these voltage is
A. 90°
B. 75°
C. 0°
D. 180°
7 Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as
A. IT = 10-4 G
B. IT = 105G
C. IT = 103G
D. IT = 104G
8 The force experienced by charged particle is maximum, if it moves
A. parallel to magnetic field
B. perpendicular to magnetic field
C. opposite to the magnetic field
D. none of these
9 The direction of lines of force depends upon the direction of
A. voltage
B. current
C. charges
D. none of these
10 Avo-meter is used of measure the
A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance

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