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

Which one of the following relations is correct?

Question # 2

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

Question # 3

The unit of flux density is also given by

Question # 4

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

Question # 5

(CRO) Cathode ray oscilloscope is a device used for high speed

Question # 6

Which is modified form of galvanometer

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

The SI unit of magnetic permeability is

Question # 11

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

Question # 12

Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as

Question # 13

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

Question # 14

The magnetic field outside the solenoid due to current is

Question # 15

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

Question # 16

Magnetic induction is also called as:

Question # 17

The vector representation of force experience give the direction of

Question # 18

How many number of anodes used in electron gun

Question # 19

F = I(L x B) is a

Question # 20

A solenoid is a coil of wire which is:

Question # 21

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 # 22

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

Question # 23

A current carrying conductor sets up its own:

Question # 24

Strength of magnetic field is measured in SI units, in:

Question # 25

magnetic field is a:

Question # 26

Ammeter is used to measure

Question # 27

The permeability of free space is measured in:

Question # 28

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

Question # 29

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

Question # 30

The unit of magnetic flux 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 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
2 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
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 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
5 When current passes through a solenoid coil, it behaves like a
A. loop
B. circle
C. bar magnet
D. none of these
6 A magnetic force on an electron travelling with 108ms-1parallel to a field of strength 1 Wb m-2is
A. Zero
B. 105 m
C. 10-10N
D. 108N
7 The e/m of an electron moving in a circular path in a magnetic field is equal to
A. V/Br
B. V/B2r2
C. V2/Br2
D. V2/Br
8 Magnetic lines of force:
A.

Cannot intersect at all

B.

Intersect at infinity

C.

Intersect within magnet

D.

Intersect at Neutral Point
9 The magnetic force exerted on an electron moving with velocity 'v' at right angle to the magnetic field is given by
A. F=eVB
B. F=e2V/B
C. F=e/VB
D. F=B2/ev
10 Which one of the following relations is correct?
A. 1 Wb-m2= Nm-1A-1
B. 1 tesla = 104 gausses
C. 1 Wb-m2= 1 tesla
D. All of the above

Test Questions

Is this page helpful?