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

Question # 2

In a moving coil galvanometer, the deflecting couple depends upon

Question # 3

A relationship between Gauses of magnetic induction and Tesla(T) is given by

Question # 4

The CRO is used for displaying the waveform of a given

Question # 5

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

Question # 6

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 # 7

Electron gun consist of

Question # 8

The force acting on a charge moving in a magnetic field

Question # 9

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

Question # 10

NmA-1 is commonly called:

Question # 11

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

Question # 12

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

Question # 13

The field around a moving charge is called

Question # 14

A current carrying conductor sets up its own:

Question # 15

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

Question # 16

When charged particle is projected perpendicular to a uniform magnetic field its trajectory is

Question # 17

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

Question # 18

To convert galvanometer into ammeter we connect

Question # 19

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

Question # 20

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 # 21

In the region surrounding a current carrying wire:

Question # 22

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

Question # 23

Method "lamp and scale arrangement" used to measure the

Question # 24

The magnetic field outside the solenoid due to current is

Question # 25

When current passes through a solenoid coil, it behaves like a

Question # 26

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

Question # 27

A long wire wound tightly on a cylindrical core is called:

Question # 28

The angle of deflection of coil can be measured by the

Question # 29

Current is measured in

Question # 30

Ammeter is used to measure

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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°
2 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
3 Method "lamp and scale arrangement" used to measure the
A. angle of deflection
B. restoring torque
C. magnetic field strength
D. current
4 When current passes through a solenoid coil, it behaves like a
A. loop
B. circle
C. bar magnet
D. none of these
5 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
6 The magnetic field in the middle of a solenoid due to current is
A. weak
B. strong and uniform
C. none-uniform
D. zero
7 Total number of turns on 0.15 m length solenoid is 300. the value of n is:
A. Greater than 300
B. Smaller than 300
C. Equal to 300
D. Any of (A) or (B)
8 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
D. None of these
9 The SI unit of magnetic flux is.
A. weber
B. Nm-1A-1
C. tesla
D. gauss
10 'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?
A. 0
B. 1
C. 0.5
D. -1

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