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 solenoid is a coil of wire which is:

Question # 2

Magnetic induction is also called as:

Question # 3

The current sensitivity of the galvanometer is

Question # 4

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

Question # 5

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 # 6

The angle of deflection of coil can be measured by the

Question # 7

F = I(L x B) is a

Question # 8

The voltage increases linearly with

Question # 9

How many number of anodes used in electron gun

Question # 10

Magnetic flux and flux density are related by

Question # 11

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

Question # 12

To convert galvanometer into ammeter we connect

Question # 13

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 # 14

Electron gun consist of

Question # 15

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

Question # 16

magnetic field is a:

Question # 17

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

Question # 18

The current is measured in

Question # 19

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

Question # 20

The SI unit of flux density is

Question # 21

Avo-meter is used of measure the

Question # 22

A galvanometer is an instrument used to

Question # 23

The force exerted on a conductor of length L, carrying current I when placed in a magnetic field B is given by

Question # 24

The permeability of free space is measured in:

Question # 25

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

Question # 26

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

Question # 27

The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called

Question # 28

When the charged particle is projected at right angles to the field, then experienced by it will be:

Question # 29

In a moving coil galvanometer, the deflecting couple depends upon

Question # 30

The force acting on a charge moving in a magnetic field

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 (CRO) Cathode ray oscilloscope is a device used for high speed
A. velocity
B. graph plotting
C. time-velocity
D. none of these
2 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
3 Magnetic flux and flux density are related by
A. Flux density = flux x area
B. Flux density = flux / area
C. Flux density = flux - area
D. None of these
4 The unit of magnetic flux is
A. Weber-m2
B. Weber-m3
C. Henry
D. Weber
5 Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:
A.

Thumb

B.

Curled fingers

C.

Middle finger

D.

Arm of right hand
6 '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
7 The gavanometer constant of a moving coil galvanometer is given by
A. K=BAN/C
B. K=BN/CA
C. K=NAC/B
D. K=C/BAN
8 When some compass needles are placed on a card board along a circle with the center at the wire, they will
A.

Point the direction of N-S

B.

Set themselves tangential to the circle

C.

Point in the direction of E-W

D.

None of these
9 When the waveform of one voltage is increasing and that of second is decreasing and vice versa, then phase difference between these voltage is
A. 90°
B. 75°
C. 0°
D. 180°
10 The field around a moving charge is called
A. magnetic field
B. conservative field
C. non-conservative field
D. none of these

Test Questions

Is this page helpful?