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 magnetic permeability is

Question # 2

Which one of the following relations is correct?

Question # 3

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 # 4

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 # 5

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

Question # 6

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

Question # 7

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

Question # 8

The vector representation of force experience give the direction of

Question # 9

For the conversion of galvanometer into voltmeter, we connect a

Question # 10

The angle of deflection of coil can be measured by the

Question # 11

Magnetic induction is also called as:

Question # 12

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

Question # 13

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

Question # 14

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 # 15

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

Question # 16

The working of galvanometer depends upon torque exerted on a current carrying coil in

Question # 17

The permeability of free space is measured in:

Question # 18

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

Question # 19

CRO deflects the beam of

Question # 20

The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon

Question # 21

Magnetic lines of force:

Question # 22

Avo-meter is used of measure the

Question # 23

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

Question # 24

Current is measured in

Question # 25

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

Question # 26

The SI unit of magnetic induction is tesla which is equal to

Question # 27

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 # 28

A resistance used in voltmeter is called

Question # 29

A field is uniform and much stronger:

Question # 30

The most suitable material for permanent magnet is

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A resistance used in voltmeter is called
A. shunt resistance
B. high resistance
C. low resistance
D. zero resistance
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 Centripetal force for electron is given by
A. mv2/ r
B. mv / r2
C. mv2/ r
D. mr2/ v
4 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
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 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)
7 Magnetic lines of force:
A.

Cannot intersect at all

B.

Intersect at infinity

C.

Intersect within magnet

D.

Intersect at Neutral Point
8 Flurescent screen is a screen where visible spot
A. vanishes
B. is made
C. becomes small and large
D. none of these
9 The current in microamperes required to produce one millimeter deflection on a scale placed one meter away from the mirror of the galvanometer, defined the sensitivity of
A. ammeter
B. voltmeter
C. galvanometer
D. avo-meter
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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