ECAT Pre Computer Science Chapter 14 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 14 Electromagnetism

Try The MCQ's Test For ECAT Physics Chapter 14 Electromagnetism

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ECAT Physics Chapter 14 Electromagnetism

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Question # 1

The SI unit of flux density is

Question # 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

Question # 3

The SI unit of magnetic permeability is

Question # 4

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

Question # 5

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

Question # 6

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:

Question # 7

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 # 8

The force acting on a charge moving in a magnetic field

Question # 9

A current carrying conductor sets up its own:

Question # 10

Lorentz force is defined as

Question # 11

A voltmeter is used to measure the

Question # 12

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 # 13

The SI unit of magnetic flux is.

Question # 14

Charge to mass ratio (e/m) of an electron is given by the relation

Question # 15

The magnetic force exerted on an electron moving with velocity 'v' at right angle to the magnetic field is given by

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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)
2 Electron gun consist of
A. three anodes
B. heating cathode
C. three anodes
D. three anodes , heating cathode, grid
3 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
4 The CRO deflects the beam of electrons, when they passes through uniform
A. electric field
B. gravitational field
C. magnetic flax
D. magnetic field
5 The SI unit of magnetic induction is
A. Gauses
B. Tesla
C. Weber
D. Weber2
6 Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:
A. Maximum
B. Minimum
C. Zero
D. Very small
7 The force acting on a charge moving in a magnetic field
A. is perpendicular to the both magnetic field and direction of motion
B. is proportional to the magnetic of charges
C. vanishes when the motion is directly opposite to the direction of field
D. all of the above
8 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
9 The SI unit of flux density is
A. Newton/Amp-meter
B. Newton-m/Ampere
C. Newton-m/Amp2
D. Newton-Amp/meter
10 The strength of magnetic field around the current conductor is
A. Smaller near the conductor
B. Greater near the conductor
C. Greater at the large distance from the conductor
D. Constant near and away from the conductor

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