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 magnetic field inside a solenoid can be increased by:

Question # 2

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

Question # 3

The voltage increases linearly with

Question # 4

A full-scale deflection is obtained in a galvanometer with a current of few

Question # 5

The SI unit of flux density is.

Question # 6

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

Question # 7

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

Question # 8

A resistance used in voltmeter is called

Question # 9

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

Question # 10

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

Question # 11

If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made

Question # 12

A galvanometer is an instrument used to

Question # 13

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

Question # 14

Which is modified form of galvanometer

Question # 15

Centripetal force for electron is given by

Question # 16

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

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:

Question # 21

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

Question # 22

In the formula B= µ̻ nl, the symbol n denotes:

Question # 23

Magnetic flux and flux density are related by

Question # 24

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

Question # 25

A voltmeter is used to measure the

Question # 26

The SI unit of magnetic flux is.

Question # 27

Avo-meter is used of measure the

Question # 28

A current carrying conductor sets up its own:

Question # 29

41 The force experience, when proton projected in a magnetic field with velocity 'v' is

Question # 30

If current through conductor is 1 A and length of conductor is 1m placed at right angle to the magnetic field, then the strength of magnetic field is

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Weber is a unit of
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density
2 Lorentz force is defined as
A. q(E + V x B)
B. q(E x B + V)
C. q(E x V + B)
D. q(E x B)
3 A solenoid is a coil of wire which is:
A.

Short, loosely wound, cylindrical

B.

Long, tightly wound, spherical

C.

Long, loosely wound, cylindrical

D.

Long, tightly wound, cylindrical
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 Strength of magnetic field is measured in SI units, in:
A. N
B. N/Am
C. Am/N
D. Nm/A
6 In the expression of force experienced by electron, the direction of both v and B are
A. parallel
B. zero
C. perpendicular
D. none of them
7 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
8 The SI unit of magnetic induction is
A. Gauses
B. Tesla
C. Weber
D. Weber2
9 The angle of deflection of coil can be measured by the
A. one method
B. three method
C. two method
D. none of these
10 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

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