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 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 # 2

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 # 3

The gavanometer constant of a moving coil galvanometer is given by

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

In the region surrounding a current carrying wire:

Question # 8

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

Question # 9

Tesla is the unit of

Question # 10

Magnetic lines of force:

Question # 11

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

Question # 12

How many number of anodes used in electron gun

Question # 13

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

Question # 14

The magnetic field outside the solenoid due to current is

Question # 15

Avo-meter is used of measure the

Question # 16

A current carrying conductor sets up its own:

Question # 17

A full-scale deflection is obtained in a galvanometer with a current of few

Question # 18

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

Question # 19

The SI unit of magnetic flux is.

Question # 20

A field is uniform and much stronger:

Question # 21

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

Question # 22

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

Question # 23

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 # 24

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

Question # 25

The strength of magnetic field around the current conductor is

Question # 26

Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:

Question # 27

Ammeter is used to measure

Question # 28

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 # 29

The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed

Question # 30

magnetic field is a:

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 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°
2 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
D. None of these
3 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
A. magnetic flux
B. magnetic induction
C. magnetic field
D. self inductance
4 A resistance used in voltmeter is called
A. shunt resistance
B. high resistance
C. low resistance
D. zero resistance
5 For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as
A. modification
B. voltage
C. current
D. resistance
6 Avo-meter is used of measure the
A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance
7 The most suitable material for permanent magnet is
A. cobalt
B. iron
C. steel
D. alaminium
8 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
A. ammeter
B. voltmeter
C. galvanometer
D. avo-meter
9 If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made
A. Sensitive
B. Accurate
C. Stable
D. None of these
10 Magnetic induction is also called as:
A.

Ampere’s law

B.

Faraday’s law

C.

Lenz’s law

D.

Newton’s law

Test Questions