ECAT Pre Computer Science Chapter 14 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 14 Electromagnetism

Try The MCQ's Test For ECAT Physics Chapter 14 Electromagnetism

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ECAT Physics Chapter 14 Electromagnetism

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Question # 1

The permeability of free space is measured in:

Question # 2

Electron gun consist of

Question # 3

The sources of magnetic field are

Question # 4

The vector representation of force experience give the direction of

Question # 5

The pointer of a magnetic compass:

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

The angle of deflection of coil can be measured by the

Question # 10

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

Question # 11

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

Question # 12

A resistance used in galvanometer to make it voltmeter is called

Question # 13

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 # 14

The CRO is used for displaying the waveform of a given

Question # 15

A magnetic force on an electron travelling with 108ms-1parallel to a field of strength 1 Wb m-2is

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The force exerted on a conductor of length L, carrying current I when placed in a magnetic field B is given by
A. F=IB/L
B. F= L x B/I
C. F = IL x B
D. F = IL . B
2 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)
3 The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called
A. magnetic flux
B. magnetic flux density
C. magnetic induction
D. magnetic field intensity
4 The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed
A. parallel to the field
B. Perpendicular to the field
C. At an angle of 45 to the field
D. None of the above
5 The vector representation of force experience give the direction of
A. magnetic field
B. current
C. length of conductor
D. force
6 The torque per unit twist of coil is called
A. proportionality constant
B. gravitational constant
C. boltzman constant
D. coupling constant
7 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
8 The SI unit of magnetic permeability is
A. WB A-1m-1
B. WB mA-1
C. WB Am-1
D. None of these
9 Magnetic induction is also called as:
A.

Ampere’s law

B.

Faraday’s law

C.

Lenz’s law

D.

Newton’s law
10 A resistance used in galvanometer to make it voltmeter is called
A. shunt resistance
B. high resistance
C. zero resistance
D. none of these

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