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 induction is tesla which is equal to

Question # 2

A beam of electrons is provided by an

Question # 3

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 # 4

The CRO is used for displaying the waveform of a given

Question # 5

The SI unit of magnetic induction is

Question # 6

Amperean path is a:

Question # 7

Galvanometer is a device used for the detection of

Question # 8

Avo-meter is used of measure the

Question # 9

The current is measured in

Question # 10

The unit of flux density is also given by

Question # 11

The force acting on a charge moving in a magnetic field

Question # 12

The most suitable material for permanent magnet is

Question # 13

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

Question # 14

How many number of anodes used in electron gun

Question # 15

The angle of deflection of coil can be measured by the

Question # 16

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

Question # 17

A field is uniform and much stronger:

Question # 18

The permeability of free space is measured in:

Question # 19

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

Question # 20

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

Question # 21

The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed

Question # 22

Lorentz force is defined as

Question # 23

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

Question # 24

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

Question # 25

The magnetic field outside the solenoid due to current is

Question # 26

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

Question # 27

The SI unit of magnetic flux is.

Question # 28

Magnetic induction is also called as:

Question # 29

magnetic field is a:

Question # 30

Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The gavanometer constant of a moving coil galvanometer is given by
A. K=BAN/C
B. K=BN/CA
C. K=NAC/B
D. K=C/BAN
2 If volume of wire is 'AL' and there are 'n' numbers of charge carriers per unit volume, then the total number of charge carriers are
A. n/AL
B. Al/n
C. nAL
D. nA/L
3 'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?
A. 0
B. 1
C. 0.5
D. -1
4 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
5 The unit of magnetic flux is
A. Weber-m2
B. Weber-m3
C. Henry
D. Weber
6 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
7 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
8 The current sensitivity of the galvanometer is
A. C/BAN
B. BAN/C
C. CAN/B
D. CBN/A
9 The angle of deflection of coil can be measured by the
A. one method
B. three method
C. two method
D. none of these
10 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)

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