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 permeability of free space is measured in:

Question # 2

When the waveform of one voltage is increasing and that of second is decreasing and vice versa, then phase difference between these voltage is

Question # 3

Avo-meter is used of measure the

Question # 4

The unit of flux density is also given by

Question # 5

Centripetal force for electron is given by

Question # 6

A beam of electrons is provided by an

Question # 7

The magnetic field inside a solenoid can be increased by:

Question # 8

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

Question # 9

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

Question # 10

Amperean path is a:

Question # 11

The sources of magnetic field are

Question # 12

Which is modified form of galvanometer

Question # 13

In order to make a voltmeter, high resistance is connected with galvanometer, in

Question # 14

Magnetic induction is also called as:

Question # 15

Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:

Question # 16

Current is measured in

Question # 17

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

Question # 18

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

Question # 19

Magnetic lines of force:

Question # 20

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

Question # 21

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

Question # 22

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 # 23

The SI unit of magnetic flux is.

Question # 24

The angle of deflection of coil can be measured by the

Question # 25

Galvanometer is a device used for the detection of

Question # 26

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

Question # 27

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

Question # 28

How many number of anodes used in electron gun

Question # 29

The force exerted on a conductor of length L, carrying current I when placed in a magnetic field B is given by

Question # 30

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Weber is a unit of
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density
2 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
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 Strength of magnetic field is measured in SI units, in:
A. N
B. N/Am
C. Am/N
D. Nm/A
5 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
6 CRO deflects the beam of
A. proton
B. a-particle
C. electron
D. neutron
7 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)
8 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
9 When current passes through a solenoid coil, it behaves like a
A. loop
B. circle
C. bar magnet
D. none of these
10 The SI unit of magnetic induction is
A. Gauses
B. Tesla
C. Weber
D. Weber2

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