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

F = I(L x B) is a

Question # 2

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

Question # 3

A current carrying conductor sets up its own:

Question # 4

Amperean path is a:

Question # 5

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

Question # 6

The direction of lines of force depends upon the direction of

Question # 7

Flurescent screen is a screen where visible spot

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

NmA-1 is commonly called:

Question # 13

Strength of magnetic field is measured in SI units, in:

Question # 14

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

Question # 15

Magnetic induction is also called as:

Question # 16

The most suitable material for permanent magnet is

Question # 17

The sources of magnetic field are

Question # 18

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

Question # 19

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

Question # 20

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

Question # 21

If current through conductor is 1 A and length of conductor is 1m placed at right angle to the magnetic field, then the strength of magnetic field is

Question # 22

Which one of the following relations is correct?

Question # 23

41 The force experience, when proton projected in a magnetic field with velocity 'v' is

Question # 24

To convert galvanometer into ammeter we connect

Question # 25

The vector representation of force experience give the direction of

Question # 26

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

Question # 27

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

Question # 28

Which is modified form of galvanometer

Question # 29

The current sensitivity of the galvanometer is

Question # 30

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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)
2 The unit of magnetic flux is
A. Weber-m2
B. Weber-m3
C. Henry
D. Weber
3 The sources of magnetic field are
A. isolated magnetic poles
B. charges at rest
C. charges in motion
D. none of these
4 Galvanometer is a device used for the detection of
A. voltage
B. current
C. temperature
D. pressure
5 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°
6 The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by
A. F =q(v/B)
B. F=q2(v x B)
C. F=q(v x B)
D. F= vx B
7 (CRO) Cathode ray oscilloscope is a device used for high speed
A. velocity
B. graph plotting
C. time-velocity
D. none of these
8 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
9 F = I(L x B) is a
A. vector
B. scalar
C. unit vector
D. none of these
10 The SI unit of magnetic induction is tesla which is equal to
A. Newton/ampere-meter or N/A-m
B. Newton/ampere2-meter or N/A2-m
C. Newton/ampere2-meter2 or N/A2-m2
D. Newton/ampere2-meter2or N/A2-m2

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