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

Current is measured in

Question # 2

The magnetic field outside the solenoid due to current is

Question # 3

The SI unit of magnetic flux is

Question # 4

A solenoid is a coil of wire which is:

Question # 5

The SI unit of magnetic flux is.

Question # 6

Galvanometer is a device used for the detection of

Question # 7

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

Question # 8

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

Question # 9

Which one of the following relations is correct?

Question # 10

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 # 11

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 # 12

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

Question # 13

Flurescent screen is a screen where visible spot

Question # 14

The permeability of free space is measured in:

Question # 15

The force exerted on a conductor of length L, carrying current I when placed in a magnetic field B is given by

Question # 16

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

Question # 17

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

Question # 18

The sources of magnetic field are

Question # 19

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

Question # 20

The SI unit of magnetic induction is

Question # 21

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

Question # 22

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

Question # 23

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

Question # 24

The CRO is used for displaying the waveform of a given

Question # 25

How many number of anodes used in electron gun

Question # 26

The unit of flux density is also given by

Question # 27

The magnetic force exerted on an electron moving with velocity 'v' at right angle to the magnetic field is given by

Question # 28

The voltage increases linearly with

Question # 29

Amperean path is a:

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 The most suitable material for permanent magnet is
A. cobalt
B. iron
C. steel
D. alaminium
2 Magnetic lines of force:
A.

Cannot intersect at all

B.

Intersect at infinity

C.

Intersect within magnet

D.

Intersect at Neutral Point
3 The field around a moving charge is called
A. magnetic field
B. conservative field
C. non-conservative field
D. none of these
4 A shunt resistance parallel to the galvanometer is used to convert it into
A. avometer
B. millimeter
C. voltmeter
D. none of these
5 if the field is directed along the normal to the area, then flux is:
A.

Maximum

B.

Equal to zero

C.

Equal to BA

D.

Minimum
6 For the conversion of galvanometer into voltmeter, we connect a
A. small resistance in series with galvanometer
B. small resistance in parallel with galvanometer
C. high resistance in parallel with galvanometer
D. high resistance series with galvanometer
7 In a straight current carrying conductor, the direction of magnetic field can be found by
A. right hand rule
B. left hand rule
C. head to tall rule
D. none of these
8 The SI unit of magnetic flux is
A. NmA-2
B. NmA-1
C. NAm-1
D. Nm2A-1
9 The SI unit of magnetic induction is
A. Gauses
B. Tesla
C. Weber
D. Weber2
10 The vector representation of force experience give the direction of
A. magnetic field
B. current
C. length of conductor
D. force

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