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

Question # 2

How many number of anodes used in electron gun

Question # 3

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

Question # 4

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

Question # 5

F = I(L x B) is a

Question # 6

The field around a moving charge is called

Question # 7

The SI unit of flux density is.

Question # 8

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

Question # 9

If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made

Question # 10

Charge to mass ratio (e/m) of an electron is given by the relation

Question # 11

The SI unit of flux density is

Question # 12

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

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

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 # 15

The strength of magnetic field around the current conductor is

Question # 16

Resistance is measured in

Question # 17

CRO deflects the beam of

Question # 18

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

Question # 19

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 # 20

The vector representation of force experience give the direction of

Question # 21

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

Question # 22

The angle of deflection of coil can be measured by the

Question # 23

The CRO deflects the beam of electrons, when they passes through uniform

Question # 24

Which one of the following relations is correct?

Question # 25

Tesla is the unit of

Question # 26

A resistance used in galvanometer to make it voltmeter is called

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

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

Question # 30

In a moving coil galvanometer, the deflecting couple depends upon

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 Centripetal force for electron is given by
A. mv2/ r
B. mv / r2
C. mv2/ r
D. mr2/ v
2 The SI unit of magnetic flux is
A. NmA-2
B. NmA-1
C. NAm-1
D. Nm2A-1
3 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
4 A galvanometer is an instrument used to
A. measure voltage across a circuit
B. detect current in a circuit
C. measure current flowing through a circuit
D. none of these
5 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
A. dead beat galvanometer
B. stable galvanometer
C. shunt galvanometer
D. sensitive galvanomter
6 The magnetic field in the middle of a solenoid due to current is
A. weak
B. strong and uniform
C. none-uniform
D. zero
7 Current is measured in
A. volts
B. watt
C. ohm
D. ampere
8 Avo-meter is used of measure the
A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance
9 Strength of magnetic field is measured in SI units, in:
A. N
B. N/Am
C. Am/N
D. Nm/A
10

the current is pass through the straight wire. The magnetic field established around it has its lines of force:
A.

Circular and endless

B.

Oval in shape and endless

C.

Straight

D.

Parabolic

Test Questions

Is this page helpful?

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!