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

Lorentz force is defined as

Question # 2

A beam of electrons is provided by an

Question # 3

Amperean path is a:

Question # 4

Centripetal force for electron is given by

Question # 5

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

Question # 6

(CRO) Cathode ray oscilloscope is a device used for high speed

Question # 7

F = I(L x B) is a

Question # 8

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 # 9

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

Question # 10

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

Question # 11

To convert galvanometer into ammeter we connect

Question # 12

A voltmeter is used to measure the

Question # 13

The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon

Question # 14

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

Question # 15

The magnetic field outside the solenoid due to current is

Question # 16

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

Question # 17

A meter wire carraying a current of 2A is at right angle to the uniform magnetic field of 0.5 Weber/m2The force on the wire is

Question # 18

The current sensitivity of the galvanometer is

Question # 19

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 # 20

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

Question # 21

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

Question # 22

Avo-meter is used of measure the

Question # 23

The pointer of a magnetic compass:

Question # 24

In the region surrounding a current carrying wire:

Question # 25

The SI unit of magnetic permeability is

Question # 26

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

Question # 27

Which one of the following relations is correct?

Question # 28

For the conversion of galvanometer into voltmeter, we connect a

Question # 29

CRO deflects the beam of

Question # 30

The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Galvanometer is a device used for the detection of
A. voltage
B. current
C. temperature
D. pressure
2 The vector representation of force experience give the direction of
A. magnetic field
B. current
C. length of conductor
D. force
3 The e/m of an electron moving in a circular path in a magnetic field is equal to
A. V/Br
B. V/B2r2
C. V2/Br2
D. V2/Br
4 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
5 The strength of magnetic field around the current conductor is
A. Smaller near the conductor
B. Greater near the conductor
C. Greater at the large distance from the conductor
D. Constant near and away from the conductor
6 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
7 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
8 In the region surrounding a current carrying wire:
A. A magnetic field is setup

B.

The lines of force are elliptical

C.

Direction of lines of forces depends upon direction of current

D.

Both (A) and (C)
9 The force acting on a charge moving in a magnetic field
A. is perpendicular to the both magnetic field and direction of motion
B. is proportional to the magnetic of charges
C. vanishes when the motion is directly opposite to the direction of field
D. all of the above
10 CRO deflects the beam of
A. proton
B. a-particle
C. electron
D. neutron

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