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 gavanometer constant of a moving coil galvanometer is given by

Question # 2

The magnetic field in the middle of a solenoid due to current is

Question # 3

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

Question # 4

Weber is a unit of

Question # 5

Current is measured in

Question # 6

NmA-1 is commonly called:

Question # 7

The pointer of a magnetic compass:

Question # 8

When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into

Question # 9

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

Question # 10

The direction of lines of force depends upon the direction of

Question # 11

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

Question # 12

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 # 13

Magnetic induction is also called as:

Question # 14

A solenoid is a coil of wire which is:

Question # 15

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 # 16

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

Question # 17

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

Question # 18

Magnetic flux and flux density are related by

Question # 19

In the expression of force experienced by electron, the direction of both v and B are

Question # 20

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

Question # 21

A voltmeter is used to measure the

Question # 22

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

Question # 23

The SI unit of magnetic permeability is

Question # 24

The most suitable material for permanent magnet is

Question # 25

Electron gun consist of

Question # 26

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 # 27

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

Question # 28

A relationship between Gauses of magnetic induction and Tesla(T) is given by

Question # 29

The CRO is used for displaying the waveform of a given

Question # 30

The sources of magnetic field are

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 The most suitable material for permanent magnet is
A. cobalt
B. iron
C. steel
D. alaminium
2 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
A. F = B2
B. F = 0
C. F = B
D. F = B/2
3 The field around a moving charge is called
A. magnetic field
B. conservative field
C. non-conservative field
D. none of these
4 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
5 Tesla is the unit of
A. Magnetic induction or flux density
B. Magnetic flux
C. Self inductance
D. None of these
6 Centripetal force for electron is given by
A. mv2/ r
B. mv / r2
C. mv2/ r
D. mr2/ v
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:
A. -y direction
B. +y direction
C. +z direction
D. -z direction
8 The SI unit of magnetic permeability is
A. WB A-1m-1
B. WB mA-1
C. WB Am-1
D. None of these
9 A field is uniform and much stronger:
A.

Inside a long solenoid

B.

Outside a long solenoid

C.

At the end of a long solenoid

D.

At the central point of long solenoid
10 To convert galvanometer into ammeter we connect
A. small resistance in parallel with galvanometer
B. small resistance in series with galvanometer
C. high resistance in series with galvanometer
D. high resistance in parallel with galvanometer

Test Questions