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

Resistance is measured in

Question # 2

the current is pass through the straight wire. The magnetic field established around it has its lines of force:

Question # 3

The unit of flux density is also given by

Question # 4

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

Question # 5

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 # 6

A solenoid is a coil of wire which is:

Question # 7

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

Question # 8

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

Question # 9

The SI unit of magnetic permeability is

Question # 10

The vector representation of force experience give the direction of

Question # 11

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

Question # 12

Tesla is the unit of

Question # 13

To convert galvanometer into ammeter we connect

Question # 14

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

Question # 15

The magnetic field inside a solenoid can be increased by:

Question # 16

Ammeter is used to measure

Question # 17

Magnetic lines of force:

Question # 18

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 # 19

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

Question # 20

The SI unit of flux density is

Question # 21

Magnetic flux and flux density are related by

Question # 22

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

Question # 23

A voltmeter is used to measure the

Question # 24

The torque per unit twist of coil is called

Question # 25

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

Question # 26

A resistance used in galvanometer to make it voltmeter is called

Question # 27

For the conversion of galvanometer into voltmeter, we connect a

Question # 28

The current is measured in

Question # 29

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

Question # 30

When some compass needles are placed on a card board along a circle with the center at the wire, they will

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The CRO deflects the beam of electrons, when they passes through uniform
A. electric field
B. gravitational field
C. magnetic flax
D. magnetic field
2 The torque per unit twist of coil is called
A. proportionality constant
B. gravitational constant
C. boltzman constant
D. coupling constant
3

Amperean path is a:
A.

Closed path

B.

Rectangular path

C.

Circular path

D.

Any of above
4 The SI unit of flux density is
A. Newton/Amp-meter
B. Newton-m/Ampere
C. Newton-m/Amp2
D. Newton-Amp/meter
5 The SI unit of flux density is.
A. Tesla
B. Weber
C. Gaun
D. Weber/meter
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 In the formula B= µ̻ nl, the symbol n denotes:
A.

Total number of turns of solenoid

B.

Number of turns per unit length

C.

Number of turns per unit volume

D.

Numbers of turns per unit area
8 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)
9 Strength of magnetic field is measured in SI units, in:
A. N
B. N/Am
C. Am/N
D. Nm/A
10 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

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