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

The SI unit of magnetic induction is tesla which is equal to

Question # 2

When current passes through a solenoid coil, it behaves like a

Question # 3

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

Question # 4

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 # 5

Total number of turns on 0.15 m length solenoid is 300. the value of n is:

Question # 6

41 The force experience, when proton projected in a magnetic field with velocity 'v' is

Question # 7

For the conversion of galvanometer into voltmeter, we connect a

Question # 8

When charged particle is projected perpendicular to a uniform magnetic field its trajectory is

Question # 9

Centripetal force for electron is given by

Question # 10

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 # 11

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

Question # 12

A field is uniform and much stronger:

Question # 13

If current through conductor is 1 A and length of conductor is 1m placed at right angle to the magnetic field, then the strength of magnetic field is

Question # 14

The force acting on a charge moving in a magnetic field

Question # 15

Flurescent screen is a screen where visible spot

Question # 16

A resistance used in galvanometer to make it voltmeter is called

Question # 17

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

Question # 18

In the region surrounding a current carrying wire:

Question # 19

A galvanometer is an instrument used to

Question # 20

Lorentz force is defined as

Question # 21

When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be

Question # 22

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

Question # 23

The permeability of free space is measured in:

Question # 24

The SI unit of magnetic flux is.

Question # 25

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

Question # 26

Magnetic flux and flux density are related by

Question # 27

A meter wire carraying a current of 2A is at right angle to the uniform magnetic field of 0.5 Weber/m2The force on the wire is

Question # 28

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 # 29

Magnetic lines of force:

Question # 30

Resistance is measured in

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 When charged particle is projected perpendicular to a uniform magnetic field its trajectory is
A. circular
B. elliptical
C. cycloid
D. straight line
2 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
D. None of these
3 Charge to mass ratio (e/m) of an electron is given by the relation
A. e/m = 2V/Br2
B. e/m = 2V/B2r
C. e/m = 2V/B2r2
D. e/m = V/2B2r2
4 F = I(L x B) is a
A. vector
B. scalar
C. unit vector
D. none of these
5 When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into
A. Voltmeter
B. Avometer
C. Ammeter
D. None of these
6 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
7 Magnetic lines of force:
A.

Cannot intersect at all

B.

Intersect at infinity

C.

Intersect within magnet

D.

Intersect at Neutral Point
8 A current carrying conductor sets up its own:
A.

Electric field

B.

Nuclear field

C.

Magnetic field

D.

Both (A) and (C)
9 'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?
A. 0
B. 1
C. 0.5
D. -1
10 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)

Test Questions

Is this page helpful?