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

  • Total Questions30

  • Time Allowed30

Start Test Download PDF

ECAT Pre General Science Physics Chapter 14 Electromagnetism

00:00
Question # 1

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

Question # 2

The vector representation of force experience give the direction of

Question # 3

'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?

Question # 4

Avo-meter is used of measure the

Question # 5

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

Question # 6

Magnetic lines of force:

Question # 7

A resistance used in galvanometer to make it voltmeter is called

Question # 8

The SI unit of magnetic flux is.

Question # 9

The field around a moving charge is called

Question # 10

In the formula B= µ̻ nl, the symbol n denotes:

Question # 11

The gavanometer constant of a moving coil galvanometer is given by

Question # 12

The strength of magnetic field around the current conductor is

Question # 13

Galvanometer is a device used for the detection of

Question # 14

CRO deflects the beam of

Question # 15

Current is measured in

Question # 16

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

Question # 17

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

Question # 18

The voltage increases linearly with

Question # 19

Ammeter is used to measure

Question # 20

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

Question # 21

Flurescent screen is a screen where visible spot

Question # 22

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

Question # 23

In a moving coil galvanometer, the deflecting couple depends upon

Question # 24

if the field is directed along the normal to the area, then flux is:

Question # 25

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 # 26

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

Question # 27

A field is uniform and much stronger:

Question # 28

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 # 29

The sources of magnetic field are

Question # 30

Electron gun consist of

Submit

Prepare Complete Set Wise ECAT Pre General Science Physics Chapter 14 Electromagnetism MCQs Online With Answers


Topic Test

00:00
Submit

Top Scorers Of ECAT Pre General Science Physics Chapter 14 Electromagnetism MCQ`s Test

  • M
    M Abduullah 17 - Feb - 2021 13 Min 51 Sec 65/120
  • W
    Waleed Ahmed 25 - Feb - 2023 18 Min 24 Sec 55/120
  • I
    Inzmam Rajper 16 - Jun - 2022 10 Min 50 Sec 50/120
  • H
    Hiba Akhtar 06 - Mar - 2023 06 Min 56 Sec 45/120

ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A charged particle moving at right angle to the magnetic field will experience
A. minimum force
B. maximum force
C. zero
D. moderate force
2 The most suitable material for permanent magnet is
A. cobalt
B. iron
C. steel
D. alaminium
3 When the charged particle is projected at right angles to the field, then experienced by it will be:
A. Maximum
B. Zero
C. qvB
D. Both (A) and (B)
4 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
5 In the expression of force experienced by electron, the direction of both v and B are
A. parallel
B. zero
C. perpendicular
D. none of them
6 When charged particle is projected perpendicular to a uniform magnetic field its trajectory is
A. circular
B. elliptical
C. cycloid
D. straight line
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 In a straight current carrying conductor, the direction of magnetic field can be found by
A. right hand rule
B. left hand rule
C. head to tall rule
D. none of these
9 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)
10 The SI unit of magnetic permeability is
A. WB A-1m-1
B. WB mA-1
C. WB Am-1
D. None of these

Test Questions

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!