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

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

Question # 2

The permeability of free space is measured in:

Question # 3

The current is measured in

Question # 4

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

Question # 5

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 # 6

The SI unit of flux density is.

Question # 7

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

Question # 8

Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:

Question # 9

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

Question # 10

if the field is directed along the normal to the area, then flux is:

Question # 11

In a moving coil galvanometer, the deflecting couple depends upon

Question # 12

The direction of lines of force depends upon the direction of

Question # 13

A field is uniform and much stronger:

Question # 14

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

Question # 15

A galvanometer is an instrument used to

Question # 16

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

Question # 17

magnetic field is a:

Question # 18

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

Question # 19

Magnetic induction is also called as:

Question # 20

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 # 21

Weber is a unit of

Question # 22

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

Question # 23

Method "lamp and scale arrangement" used to measure the

Question # 24

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

Question # 25

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

Question # 26

Ammeter is used to measure

Question # 27

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

Question # 28

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

Question # 29

The SI unit of magnetic permeability is

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 Electron gun consist of
A. three anodes
B. heating cathode
C. three anodes
D. three anodes , heating cathode, grid
2 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
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 Method "lamp and scale arrangement" used to measure the
A. angle of deflection
B. restoring torque
C. magnetic field strength
D. current
5 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)
6 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
7 A current carrying conductor sets up its own:
A.

Electric field

B.

Nuclear field

C.

Magnetic field

D.

Both (A) and (C)
8 Centripetal force for electron is given by
A. mv2/ r
B. mv / r2
C. mv2/ r
D. mr2/ v
9 Lorentz force is defined as
A. q(E + V x B)
B. q(E x B + V)
C. q(E x V + B)
D. q(E x B)
10 The force experienced by an electron projected in a magnetic field B with a velocity V is given by
A. F=e(V x B)
B. F= -e(V x B)
C. F= e(B x V)
D. Both a and c

Test Questions

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!