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

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

Question # 2

41 The force experience, when proton projected in a magnetic field with velocity 'v' is

Question # 3

The magnetic field in the middle of a solenoid due to current is

Question # 4

The current is measured in

Question # 5

The permeability of free space is measured in:

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

The magnetic field outside the solenoid due to current is

Question # 10

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

Question # 11

A solenoid is a coil of wire which is:

Question # 12

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 # 13

The most suitable material for permanent magnet is

Question # 14

A galvanometer is an instrument used to

Question # 15

The gavanometer constant of a moving coil galvanometer is given by

Question # 16

the current is pass through the straight wire. The magnetic field established around it has its lines of force:

Question # 17

The current sensitivity of the galvanometer is

Question # 18

CRO deflects the beam of

Question # 19

The SI unit of flux density is

Question # 20

A resistance used in voltmeter is called

Question # 21

At a given instant, a photon moves in +x direction in a region where there magnetic field in -z direction. The magnetic force on the proton will be the:

Question # 22

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

Question # 23

The force acting on a charge moving in a magnetic field

Question # 24

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

Question # 25

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

Question # 26

Magnetic flux and flux density are related by

Question # 27

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

Question # 28

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

Question # 29

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

Question # 30

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Charge to mass ratio (e/m) of an electron is given by the relation
A. e/m = 2V/Br2
B. e/m = 2V/B2r
C. e/m = 2V/B2r2
D. e/m = V/2B2r2
2 When current passes through a solenoid coil, it behaves like a
A. loop
B. circle
C. bar magnet
D. none of these
3 A relationship between Gauses of magnetic induction and Tesla(T) is given by
A. G 10-3T
B. G = 10-2T
C. G = 10-4T
D. G = 10-1T
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 The force experienced by charged particle is maximum, if it moves
A. parallel to magnetic field
B. perpendicular to magnetic field
C. opposite to the magnetic field
D. none of these
6 Avo-meter is used of measure the
A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance
7 Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:
A. BACosѲ

B. Zero
C. BA
D. BA sinѲ
8 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
9 (CRO) Cathode ray oscilloscope is a device used for high speed
A. velocity
B. graph plotting
C. time-velocity
D. none of these
10 The SI unit of flux density is.
A. Tesla
B. Weber
C. Gaun
D. Weber/meter

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