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

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

Question # 2

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

Question # 3

The sources of magnetic field are

Question # 4

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

Question # 5

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

Question # 6

Tesla is the unit of

Question # 7

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

Question # 8

Ammeter is used to measure

Question # 9

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

Question # 10

F = I(L x B) is a

Question # 11

It is customary represent a current flowing towards the reader by a symbol

Question # 12

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 # 13

The most suitable material for permanent magnet is

Question # 14

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

Question # 15

The vector representation of force experience give the direction of

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made
A. Sensitive
B. Accurate
C. Stable
D. None of these
3 Which one of the following relations is correct?
A. 1 Wb-m2= Nm-1A-1
B. 1 tesla = 104 gausses
C. 1 Wb-m2= 1 tesla
D. All of the above
4 When the waveform of one voltage is increasing and that of second is decreasing and vice versa, then phase difference between these voltage is
A. 90°
B. 75°
C. 0°
D. 180°
5 Lorentz force is defined as
A. q(E + V x B)
B. q(E x B + V)
C. q(E x V + B)
D. q(E x B)
6 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
7 The galvanometer can be made sensitive if the value of the factor C/BAN is
A. constant
B. small
C. large
D. none of these
8 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
D. None of these
9 The current is measured in
A. volts
B. watt
C. ampere
D. ohm
10 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

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