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

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

Question # 2

Current is measured in

Question # 3

Galvanometer is a device used for the detection of

Question # 4

Lorentz force is defined as

Question # 5

CRO deflects the beam of

Question # 6

Amperean path is a:

Question # 7

Electron gun consist of

Question # 8

A beam of electrons is provided by an

Question # 9

When the charged particle is projected at right angles to the field, then experienced by it will be:

Question # 10

The vector representation of force experience give the direction of

Question # 11

Ammeter is used to measure

Question # 12

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

Question # 13

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

Question # 14

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 # 15

The SI unit of magnetic permeability is

Question # 16

The permeability of free space is measured in:

Question # 17

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 # 18

A current carrying conductor sets up its own:

Question # 19

if the field is directed along the normal to the area, then flux is:

Question # 20

The direction of lines of force depends upon the direction of

Question # 21

A resistance used in galvanometer to make it voltmeter is called

Question # 22

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

Question # 23

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

Question # 24

The most suitable material for permanent magnet is

Question # 25

A galvanometer is an instrument used to

Question # 26

The magnetic field inside a solenoid can be increased by:

Question # 27

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

Question # 28

Method "lamp and scale arrangement" used to measure the

Question # 29

magnetic field is a:

Question # 30

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Tesla is the unit of
A. Magnetic induction or flux density
B. Magnetic flux
C. Self inductance
D. None of these
2 Electron gun consist of
A. three anodes
B. heating cathode
C. three anodes
D. three anodes , heating cathode, grid
3 magnetic field is a:
A.

Vector quantity

B.

Scalar quantity

C.

Scalar as well as scalar quantity

D.

Any of (A) or (B)
4 The force acting as one meter length of the conductor placed at right angle to the magnetic field, when one A current is passing through it, defines the
A. magnetic flux
B. magnetic induction
C. magnetic field
D. self inductance
5 The magnetic field outside the solenoid due to current is
A. strong
B. zero
C. weak
D. uniform
6 The voltage increases linearly with
A. time
B. velocity
C. acceleration
D. torque
7 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
8 A shunt resistance parallel to the galvanometer is used to convert it into
A. avometer
B. millimeter
C. voltmeter
D. none of these
9 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)
10 The magnetic field in the middle of a solenoid due to current is
A. weak
B. strong and uniform
C. none-uniform
D. zero

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