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 voltage increases linearly with

Question # 2

Magnetic induction is also called as:

Question # 3

CRO deflects the beam of

Question # 4

Amperean path is a:

Question # 5

The unit of magnetic flux is

Question # 6

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

Question # 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:

Question # 8

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

Question # 9

Total number of turns on 0.15 m length solenoid is 300. the value of n is:

Question # 10

The SI unit of magnetic flux is

Question # 11

The magnetic field inside a solenoid can be increased by:

Question # 12

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

Question # 13

A beam of electrons is provided by an

Question # 14

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

Question # 15

Centripetal force for electron is given by

Question # 16

The galvanometer can be made sensitive if the value of the factor C/BAN is

Question # 17

The sources of magnetic field are

Question # 18

Weber is a unit of

Question # 19

The angle of deflection of coil can be measured by the

Question # 20

The current is measured in

Question # 21

Magnetic flux and flux density are related by

Question # 22

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

Question # 23

The SI unit of magnetic induction is

Question # 24

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

Question # 25

For the conversion of galvanometer into voltmeter, we connect a

Question # 26

The direction of lines of force depends upon the direction of

Question # 27

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

Question # 28

How many number of anodes used in electron gun

Question # 29

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

Question # 30

NmA-1 is commonly called:

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A shunt resistance parallel to the galvanometer is used to convert it into
A. avometer
B. millimeter
C. voltmeter
D. none of these
2 When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into
A. Voltmeter
B. Avometer
C. Ammeter
D. None of these
3 In the region surrounding a current carrying wire:
A. A magnetic field is setup

B.

The lines of force are elliptical

C.

Direction of lines of forces depends upon direction of current

D.

Both (A) and (C)
4 The vector representation of force experience give the direction of
A. magnetic field
B. current
C. length of conductor
D. force
5 A resistance used in voltmeter is called
A. shunt resistance
B. high resistance
C. low resistance
D. zero resistance
6 Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as
A. IT = 10-4 G
B. IT = 105G
C. IT = 103G
D. IT = 104G
7 Avo-meter is used of measure the
A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance
8 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
9 Centripetal force for electron is given by
A. mv2/ r
B. mv / r2
C. mv2/ r
D. mr2/ v
10 Ammeter is used to measure
A. voltage
B. resistance
C. voltage and current
D. current

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