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 field around a moving charge is called

Question # 2

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

Question # 3

Weber is a unit of

Question # 4

Avo-meter is used of measure the

Question # 5

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

Question # 6

The direction of lines of force depends upon the direction of

Question # 7

Ammeter is used to measure

Question # 8

Which one of the following relations is correct?

Question # 9

Which is modified form of galvanometer

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

The vector representation of force experience give the direction of

Question # 14

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

Question # 15

Electron gun consist of

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Centripetal force for electron is given by
A. mv2/ r
B. mv / r2
C. mv2/ r
D. mr2/ v
2 The direction of lines of force depends upon the direction of
A. voltage
B. current
C. charges
D. none of these
3 Electron gun consist of
A. three anodes
B. heating cathode
C. three anodes
D. three anodes , heating cathode, grid
4 The current is measured in
A. volts
B. watt
C. ampere
D. ohm
5 Tesla is the unit of
A. Magnetic induction or flux density
B. Magnetic flux
C. Self inductance
D. None of these
6 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
7 A resistance used in galvanometer to make it voltmeter is called
A. shunt resistance
B. high resistance
C. zero resistance
D. none of these
8 Magnetic induction is also called as:
A.

Ampere’s law

B.

Faraday’s law

C.

Lenz’s law

D.

Newton’s law
9 Magnetic flux and flux density are related by
A. Flux density = flux x area
B. Flux density = flux / area
C. Flux density = flux - area
D. None of these
10 The force experienced by an electron projected in a magnetic field B with a velocity V is given by
A. F=e(V x B)
B. F= -e(V x B)
C. F= e(B x V)
D. Both a and c

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