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

Magnetic induction is also called as:

Question # 2

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

Question # 3

The SI unit of magnetic permeability is

Question # 4

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

Question # 5

Ammeter is used to measure

Question # 6

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

Question # 7

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 # 8

The pointer of a magnetic compass:

Question # 9

Magnetic lines of force:

Question # 10

The voltage increases linearly with

Question # 11

Which is modified form of galvanometer

Question # 12

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

Question # 13

The direction of lines of force depends upon the direction of

Question # 14

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

Question # 15

The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called

Question # 16

NmA-1 is commonly called:

Question # 17

Method "lamp and scale arrangement" used to measure the

Question # 18

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

Question # 19

Current is measured in

Question # 20

If volume of wire is 'AL' and there are 'n' numbers of charge carriers per unit volume, then the total number of charge carriers are

Question # 21

The current sensitivity of the galvanometer is

Question # 22

The SI unit of flux density is

Question # 23

Which one of the following relations is correct?

Question # 24

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

Question # 25

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

Question # 26

How many number of anodes used in electron gun

Question # 27

The unit of flux density is also given by

Question # 28

Electron gun consist of

Question # 29

In the region surrounding a current carrying wire:

Question # 30

A resistance used in galvanometer to make it voltmeter is called

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The permeability of free space is measured in:
A. Wb/Am
B. Wb A/m
C. Am/Wb
D. m/Web A
2 Galvanometer is a device used for the detection of
A. voltage
B. current
C. temperature
D. pressure
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 A galvanometer in which the coil comes to rest quickly after the current passed through it, or the current stopped form flowing through it, is called
A. dead beat galvanometer
B. stable galvanometer
C. shunt galvanometer
D. sensitive galvanomter
5 The galvanometer can be made sensitive if the value of the factor C/BAN is
A. constant
B. small
C. large
D. none of these
6 A charged particle moving at right angle to the magnetic field will experience
A. minimum force
B. maximum force
C. zero
D. moderate force
7 At a given instant, a photon moves in +x direction in a region where there magnetic field in -z direction. The magnetic force on the proton will be the:
A. -y direction
B. +y direction
C. +z direction
D. -z direction
8 When charged particle is projected perpendicular to a uniform magnetic field its trajectory is
A. circular
B. elliptical
C. cycloid
D. straight line
9 The force experienced by an electron projected in a magnetic field B with a velocity V is given by
A. F=e(V x B)
B. F= -e(V x B)
C. F= e(B x V)
D. Both a and c
10 The working of galvanometer depends upon torque exerted on a current carrying coil in
A. magnetic field
B. electric field
C. gravitational field
D. nuclear field

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