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 SI unit of flux density is.

Question # 2

When the waveform of one voltage is increasing and that of second is decreasing and vice versa, then phase difference between these voltage is

Question # 3

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

Question # 4

The angle of deflection of coil can be measured by the

Question # 5

The direction of lines of force depends upon the direction of

Question # 6

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

Question # 7

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

Question # 8

A solenoid is a coil of wire which is:

Question # 9

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

Question # 10

Galvanometer is a device used for the detection of

Question # 11

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

Question # 12

The field around a moving charge is called

Question # 13

In the region surrounding a current carrying wire:

Question # 14

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

Question # 15

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

Question # 16

Centripetal force for electron is given by

Question # 17

Magnetic lines of force:

Question # 18

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

Question # 19

Which is modified form of galvanometer

Question # 20

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 # 21

A voltmeter is used to measure the

Question # 22

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

Question # 23

The voltage increases linearly with

Question # 24

The SI unit of flux density is

Question # 25

F = I(L x B) is a

Question # 26

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

Question # 27

The strength of magnetic field around the current conductor is

Question # 28

In the expression of force experienced by electron, the direction of both v and B are

Question # 29

For the conversion of galvanometer into voltmeter, we connect a

Question # 30

Ammeter is used to measure

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A galvanometer is an instrument used to
A. measure voltage across a circuit
B. detect current in a circuit
C. measure current flowing through a circuit
D. none of these
2 The angle of deflection of coil can be measured by the
A. one method
B. three method
C. two method
D. none of these
3 The sources of magnetic field are
A. isolated magnetic poles
B. charges at rest
C. charges in motion
D. none of these
4 Which one of the following relations is correct?
A. 1 Wb-m2= Nm-1A-1
B. 1 tesla = 104 gausses
C. 1 Wb-m2= 1 tesla
D. All of the above
5 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
6 magnetic field is a:
A.

Vector quantity

B.

Scalar quantity

C.

Scalar as well as scalar quantity

D.

Any of (A) or (B)
7 Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:
A.

Thumb

B.

Curled fingers

C.

Middle finger

D.

Arm of right hand
8 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
A. F = B2
B. F = 0
C. F = B
D. F = B/2
9 The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called
A. magnetic flux
B. magnetic flux density
C. magnetic induction
D. magnetic field intensity
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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