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

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 # 2

The force experienced by charged particle is maximum, if it moves

Question # 3

The SI unit of magnetic flux is.

Question # 4

A galvanometer in which the coil comes to rest quickly after the current passed through it, or the current stopped form flowing through it, is called

Question # 5

The strength of magnetic field around the current conductor is

Question # 6

Resistance is measured in

Question # 7

The unit of magnetic flux is

Question # 8

A resistance used in voltmeter is called

Question # 9

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 # 10

Centripetal force for electron is given by

Question # 11

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 # 12

Ammeter is used to measure

Question # 13

The sources of magnetic field are

Question # 14

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:

Question # 15

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

Question # 16

Which one of the following relations is correct?

Question # 17

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

Question # 18

Lorentz force is defined as

Question # 19

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

Question # 20

In order to make a voltmeter, high resistance is connected with galvanometer, in

Question # 21

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

Question # 22

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

Question # 23

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

Question # 24

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

Question # 25

The SI unit of magnetic flux is

Question # 26

A solenoid is a coil of wire which is:

Question # 27

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

Question # 28

The SI unit of flux density is

Question # 29

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

Question # 30

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

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 41 The force experience, when proton projected in a magnetic field with velocity 'v' is
A. +e(v x B)
B. -C(V x B)
C. +e2(v x B)
D. -e(v2x B)
2 In order to make a voltmeter, high resistance is connected with galvanometer, in
A. perpendicular
B. may be paralled or pendicular
C. series
D. none of these
3 The SI unit of magnetic induction is tesla which is equal to
A. Newton/ampere-meter or N/A-m
B. Newton/ampere2-meter or N/A2-m
C. Newton/ampere2-meter2 or N/A2-m2
D. Newton/ampere2-meter2or N/A2-m2
4 The magnetic field outside the solenoid due to current is
A. strong
B. zero
C. weak
D. uniform
5 The most suitable material for permanent magnet is
A. cobalt
B. iron
C. steel
D. alaminium
6 In the formula B= µ̻ nl, the symbol n denotes:
A.

Total number of turns of solenoid

B.

Number of turns per unit length

C.

Number of turns per unit volume

D.

Numbers of turns per unit area
7 The CRO deflects the beam of electrons, when they passes through uniform
A. electric field
B. gravitational field
C. magnetic flax
D. magnetic field
8 Total number of turns on 0.15 m length solenoid is 300. the value of n is:
A. Greater than 300
B. Smaller than 300
C. Equal to 300
D. Any of (A) or (B)
9 The magnetic field in the middle of a solenoid due to current is
A. weak
B. strong and uniform
C. none-uniform
D. zero
10 The current is measured in
A. volts
B. watt
C. ampere
D. ohm

Test Questions