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 most suitable material for permanent magnet is

Question # 2

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

Question # 3

The voltage increases linearly with

Question # 4

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

Question # 5

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

Question # 6

CRO deflects the beam of

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

The SI unit of magnetic induction is

Question # 11

A meter wire carraying a current of 2A is at right angle to the uniform magnetic field of 0.5 Weber/m2The force on the wire is

Question # 12

Charge to mass ratio (e/m) of an electron is given by the relation

Question # 13

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

Question # 14

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

Question # 15

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

Question # 16

When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into

Question # 17

The vector representation of force experience give the direction of

Question # 18

A resistance used in galvanometer to make it voltmeter is called

Question # 19

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

Question # 20

Tesla is the unit of

Question # 21

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

Question # 22

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

Question # 23

Magnetic induction is also called as:

Question # 24

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

Question # 25

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

Question # 26

Flurescent screen is a screen where visible spot

Question # 27

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

Question # 28

The angle of deflection of coil can be measured by the

Question # 29

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

Question # 30

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 When some compass needles are placed on a card board along a circle with the center at the wire, they will
A.

Point the direction of N-S

B.

Set themselves tangential to the circle

C.

Point in the direction of E-W

D.

None of these
3 In a moving coil galvanometer, the deflecting couple depends upon
A. area of the coil
B. number of turns of coil
C. value of magnetic field
D. all of the above
4 The current is measured in
A. volts
B. watt
C. ampere
D. ohm
5 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)
6 To convert galvanometer into ammeter we connect
A. small resistance in parallel with galvanometer
B. small resistance in series with galvanometer
C. high resistance in series with galvanometer
D. high resistance in parallel with galvanometer
7 Galvanometer is a device used for the detection of
A. voltage
B. current
C. temperature
D. pressure
8 The SI unit of magnetic induction is tesla which is equal to
A. Newton/ampere-meter or N/A-m
B. Newton/ampere2-meter or N/A2-m
C. Newton/ampere2-meter2 or N/A2-m2
D. Newton/ampere2-meter2or N/A2-m2
9 When current passes through a solenoid coil, it behaves like a
A. loop
B. circle
C. bar magnet
D. none of these
10 Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:
A. BACosѲ

B. Zero
C. BA
D. BA sinѲ

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