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

Which is modified form of galvanometer

Question # 2

Method "lamp and scale arrangement" used to measure the

Question # 3

NmA-1 is commonly called:

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

Amperean path is a:

Question # 8

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

Question # 9

The permeability of free space is measured in:

Question # 10

When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be

Question # 11

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

Question # 12

The magnetic field outside the solenoid due to current is

Question # 13

A resistance used in voltmeter is called

Question # 14

magnetic field is a:

Question # 15

F = I(L x B) is a

Question # 16

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

Question # 17

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

Question # 18

The SI unit of magnetic permeability is

Question # 19

The SI unit of flux density is.

Question # 20

Lorentz force is defined as

Question # 21

A beam of electrons is provided by an

Question # 22

A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is

Question # 23

The field around a moving charge is called

Question # 24

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

Question # 25

The pointer of a magnetic compass:

Question # 26

Magnetic lines of force:

Question # 27

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

Question # 28

The current sensitivity of the galvanometer is

Question # 29

Galvanometer is a device used for the detection of

Question # 30

Resistance is measured in

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The SI unit of flux density is.
A. Tesla
B. Weber
C. Gaun
D. Weber/meter
2 The field around a moving charge is called
A. magnetic field
B. conservative field
C. non-conservative field
D. none of these
3 The torque per unit twist of coil is called
A. proportionality constant
B. gravitational constant
C. boltzman constant
D. coupling constant
4 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
A. n/AL
B. Al/n
C. nAL
D. nA/L
5 The most suitable material for permanent magnet is
A. cobalt
B. iron
C. steel
D. alaminium
6 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
7 Magnetic induction is also called as:
A.

Ampere’s law

B.

Faraday’s law

C.

Lenz’s law

D.

Newton’s law
8 Avo-meter is used of measure the
A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance
9 For the conversion of galvanometer into voltmeter, we connect a
A. small resistance in series with galvanometer
B. small resistance in parallel with galvanometer
C. high resistance in parallel with galvanometer
D. high resistance series with galvanometer
10 When charged particle is projected perpendicular to a uniform magnetic field its trajectory is
A. circular
B. elliptical
C. cycloid
D. straight line

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