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 long wire wound tightly on a cylindrical core is called:

Question # 2

In the region surrounding a current carrying wire:

Question # 3

Centripetal force for electron is given by

Question # 4

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

Question # 5

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

Question # 6

The SI unit of magnetic induction is

Question # 7

The SI unit of flux density is

Question # 8

Lorentz force is defined as

Question # 9

A field is uniform and much stronger:

Question # 10

Electron gun consist of

Question # 11

magnetic field is a:

Question # 12

The CRO is used for displaying the waveform of a given

Question # 13

Ammeter is used to measure

Question # 14

Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as

Question # 15

In order to make a voltmeter, high resistance is connected with galvanometer, in

Question # 16

The magnetic field in the middle of a solenoid due to current is

Question # 17

The direction of lines of force depends upon the direction of

Question # 18

Total number of turns on 0.15 m length solenoid is 300. the value of n is:

Question # 19

Magnetic induction is also called as:

Question # 20

A resistance used in galvanometer to make it voltmeter is called

Question # 21

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

Question # 22

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

Question # 23

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

Question # 24

The current is measured in

Question # 25

If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made

Question # 26

Amperean path is a:

Question # 27

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 # 28

The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed

Question # 29

In the expression of force experienced by electron, the direction of both v and B are

Question # 30

Magnetic flux and flux density are related by

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The sources of magnetic field are
A. isolated magnetic poles
B. charges at rest
C. charges in motion
D. none of these
2 A voltmeter is used to measure the
A. potential difference
B. current
C. temperature
D. resistance
3 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
4 41 The force experience, when proton projected in a magnetic field with velocity 'v' is
A. +e(v x B)
B. -C(V x B)
C. +e2(v x B)
D. -e(v2x B)
5 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
6 Magnetic flux and flux density are related by
A. Flux density = flux x area
B. Flux density = flux / area
C. Flux density = flux - area
D. None of these
7 A charged particle moving at right angle to the magnetic field will experience
A. minimum force
B. maximum force
C. zero
D. moderate force
8 The CRO is used for displaying the waveform of a given
A. current
B. voltage
C. both of them
D. none of them
9 Avo-meter is used of measure the
A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance
10 The voltage increases linearly with
A. time
B. velocity
C. acceleration
D. torque

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