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

Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:

Question # 2

A field is uniform and much stronger:

Question # 3

To convert galvanometer into ammeter we connect

Question # 4

The permeability of free space is measured in:

Question # 5

CRO deflects the beam of

Question # 6

How many number of anodes used in electron gun

Question # 7

Weber is a unit of

Question # 8

A current carrying conductor sets up its own:

Question # 9

In the region surrounding a current carrying wire:

Question # 10

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

Question # 11

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

Question # 12

Resistance is measured in

Question # 13

For the conversion of galvanometer into voltmeter, we connect a

Question # 14

When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into

Question # 15

The SI unit of magnetic induction is

Question # 16

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

Question # 17

Method "lamp and scale arrangement" used to measure the

Question # 18

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

Question # 19

The CRO is used for displaying the waveform of a given

Question # 20

magnetic field is a:

Question # 21

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

Question # 22

Magnetic flux and flux density are related by

Question # 23

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

Question # 24

A solenoid is a coil of wire which is:

Question # 25

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

Question # 26

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

Question # 27

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 # 28

The voltage increases linearly with

Question # 29

Avo-meter is used of measure the

Question # 30

Tesla is the unit of

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The SI unit of flux density is
A. Newton/Amp-meter
B. Newton-m/Ampere
C. Newton-m/Amp2
D. Newton-Amp/meter
2 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
3 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
4 When charged particle is projected perpendicular to a uniform magnetic field its trajectory is
A. circular
B. elliptical
C. cycloid
D. straight line
5 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
6 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
7 The current is measured in
A. volts
B. watt
C. ampere
D. ohm
8 A full-scale deflection is obtained in a galvanometer with a current of few
A. ampere
B. volts
C. milliampere
D. ohm
9 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
10 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°

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