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 force experienced by an electron projected in a magnetic field B with a velocity V is given by

Question # 2

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

Question # 3

A full-scale deflection is obtained in a galvanometer with a current of few

Question # 4

The force acting on a charge moving in a magnetic field

Question # 5

Avo-meter is used of measure the

Question # 6

A solenoid is a coil of wire which is:

Question # 7

A current carrying conductor sets up its own:

Question # 8

A galvanometer is an instrument used to

Question # 9

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

Question # 10

Lorentz force is defined as

Question # 11

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 # 12

The CRO is used for displaying the waveform of a given

Question # 13

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

Question # 14

Method "lamp and scale arrangement" used to measure the

Question # 15

CRO deflects the beam of

Question # 16

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

Question # 17

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

Question # 18

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

Question # 19

In a straight current carrying conductor, the direction of magnetic field can be found by

Question # 20

Which is modified form of galvanometer

Question # 21

magnetic field is a:

Question # 22

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

Question # 23

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

Question # 24

The gavanometer constant of a moving coil galvanometer is given by

Question # 25

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 # 26

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

Question # 27

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 # 28

Magnetic lines of force:

Question # 29

The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by

Question # 30

The sources of magnetic field are

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The direction of lines of force depends upon the direction of
A. voltage
B. current
C. charges
D. none of these
2 NmA-1 is commonly called:
A. Weber
B. Apmere
C. Guass
D. Coulomb
3 When charged particle is projected perpendicular to a uniform magnetic field its trajectory is
A. circular
B. elliptical
C. cycloid
D. straight line
4 Total number of turns on 0.15 m length solenoid is 300. the value of n is:
A. Greater than 300
B. Smaller than 300
C. Equal to 300
D. Any of (A) or (B)
5 CRO deflects the beam of
A. proton
B. a-particle
C. electron
D. neutron
6 The sources of magnetic field are
A. isolated magnetic poles
B. charges at rest
C. charges in motion
D. none of these
7 A full-scale deflection is obtained in a galvanometer with a current of few
A. ampere
B. volts
C. milliampere
D. ohm
8 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
A. magnetic flux
B. magnetic induction
C. magnetic field
D. self inductance
9 If the number of turns of a solenoid (carrying a steady current I) is doubled without changing the length of a solenoid, then magnetic field:
A. Becomes Half
B. Becomes double
C. Is not affected
D. Becomes one fourth
10 The unit of magnetic flux is
A. Weber-m2
B. Weber-m3
C. Henry
D. Weber

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