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 voltage increases linearly with

Question # 2

The field around a moving charge is called

Question # 3

A galvanometer in which the coil comes to rest quickly after the current passed through it, or the current stopped form flowing through it, is called

Question # 4

A solenoid is a coil of wire which is:

Question # 5

A galvanometer is an instrument used to

Question # 6

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

Question # 7

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

Question # 8

The CRO is used for displaying the waveform of a given

Question # 9

If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made

Question # 10

The unit of flux density is also given by

Question # 11

The SI unit of magnetic induction is tesla which is equal to

Question # 12

The SI unit of flux density is.

Question # 13

Current is measured in

Question # 14

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 # 15

Electron gun consist of

Question # 16

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

Question # 17

The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called

Question # 18

A field is uniform and much stronger:

Question # 19

The permeability of free space is measured in:

Question # 20

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

Question # 21

A voltmeter is used to measure the

Question # 22

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

Question # 23

Amperean path is a:

Question # 24

The magnetic field inside a solenoid can be increased by:

Question # 25

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

Question # 26

The gavanometer constant of a moving coil galvanometer is given by

Question # 27

The pointer of a magnetic compass:

Question # 28

Galvanometer is a device used for the detection of

Question # 29

When current passes through a solenoid coil, it behaves like a

Question # 30

The unit of magnetic flux is

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The vector representation of force experience give the direction of
A. magnetic field
B. current
C. length of conductor
D. force
2 F = I(L x B) is a
A. vector
B. scalar
C. unit vector
D. none of these
3 Ammeter is used to measure
A. voltage
B. resistance
C. voltage and current
D. current
4 The unit of flux density is also given by
A. Weber/m2or Wb . m-2
B. Weber/mor Wb . m
C. Weber/mor Wb . m-1
D. Weber or Wb
5 In the formula B= µ̻ nl, the symbol n denotes:
A.

Total number of turns of solenoid

B.

Number of turns per unit length

C.

Number of turns per unit volume

D.

Numbers of turns per unit area
6 Current is measured in
A. volts
B. watt
C. ohm
D. ampere
7 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
8 Weber is a unit of
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density
9 CRO deflects the beam of
A. proton
B. a-particle
C. electron
D. neutron
10 The current sensitivity of the galvanometer is
A. C/BAN
B. BAN/C
C. CAN/B
D. CBN/A

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