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 magnetic induction is tesla which is equal to

Question # 2

Flurescent screen is a screen where visible spot

Question # 3

The SI unit of magnetic permeability is

Question # 4

The current sensitivity of the galvanometer is

Question # 5

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

Question # 6

In a moving coil galvanometer, the deflecting couple depends upon

Question # 7

The gavanometer constant of a moving coil galvanometer is given by

Question # 8

The SI unit of flux density is.

Question # 9

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

Question # 10

For the conversion of galvanometer into voltmeter, we connect a

Question # 11

The permeability of free space is measured in:

Question # 12

To convert galvanometer into ammeter we connect

Question # 13

How many number of anodes used in electron gun

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is
A. minimum
B. maximum
C. zero
D. none of these
2 In the region surrounding a current carrying wire:
A. A magnetic field is setup

B.

The lines of force are elliptical

C.

Direction of lines of forces depends upon direction of current

D.

Both (A) and (C)
3 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:
A. -y direction
B. +y direction
C. +z direction
D. -z direction
4 The permeability of free space is measured in:
A. Wb/Am
B. Wb A/m
C. Am/Wb
D. m/Web A
5 Ammeter is used to measure
A. voltage
B. resistance
C. voltage and current
D. current
6 The SI unit of magnetic flux is
A. NmA-2
B. NmA-1
C. NAm-1
D. Nm2A-1
7 Current is measured in
A. volts
B. watt
C. ohm
D. ampere
8 if the field is directed along the normal to the area, then flux is:
A.

Maximum

B.

Equal to zero

C.

Equal to BA

D.

Minimum
9 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
10 Galvanometer is a device used for the detection of
A. voltage
B. current
C. temperature
D. pressure

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