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

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ECAT Pre General Science Physics Chapter 14 Electromagnetism

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Question # 1

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 # 2

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

Question # 3

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

Question # 4

A charged particle moving at right angle to the magnetic field will experience

Question # 5

Electron gun consist of

Question # 6

The SI unit of magnetic permeability is

Question # 7

The sources of magnetic field are

Question # 8

The angle of deflection of coil can be measured by the

Question # 9

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

Question # 10

How many number of anodes used in electron gun

Question # 11

Which is modified form of galvanometer

Question # 12

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

Question # 13

41 The force experience, when proton projected in a magnetic field with velocity 'v' is

Question # 14

In the region surrounding a current carrying wire:

Question # 15

Ammeter is used to measure

Question # 16

A beam of electrons is provided by an

Question # 17

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 # 18

The direction of lines of force depends upon the direction of

Question # 19

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

Question # 20

A shunt resistance parallel to the galvanometer is used to convert it into

Question # 21

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

Question # 22

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

Question # 23

magnetic field is a:

Question # 24

In a moving coil galvanometer, the deflecting couple depends upon

Question # 25

NmA-1 is commonly called:

Question # 26

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

Question # 27

The field around a moving charge is called

Question # 28

A resistance used in voltmeter is called

Question # 29

A resistance used in galvanometer to make it voltmeter is called

Question # 30

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A long wire wound tightly on a cylindrical core is called:
A. Potentiometer
B. Solenoid
C. Toroid
D. Wheat and stone bridge
2 The strength of magnetic field around the current conductor is
A. Smaller near the conductor
B. Greater near the conductor
C. Greater at the large distance from the conductor
D. Constant near and away from the conductor
3 Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:
A. Maximum
B. Minimum
C. Zero
D. Very small
4 When current passes through a solenoid coil, it behaves like a
A. loop
B. circle
C. bar magnet
D. none of these
5 The working of galvanometer depends upon torque exerted on a current carrying coil in
A. magnetic field
B. electric field
C. gravitational field
D. nuclear field
6 A current carrying conductor sets up its own:
A.

Electric field

B.

Nuclear field

C.

Magnetic field

D.

Both (A) and (C)
7 When some compass needles are placed on a card board along a circle with the center at the wire, they will
A.

Point the direction of N-S

B.

Set themselves tangential to the circle

C.

Point in the direction of E-W

D.

None of these
8 The most suitable material for permanent magnet is
A. cobalt
B. iron
C. steel
D. alaminium
9 In the region surrounding a current carrying wire:
A. A magnetic field is setup

B.

The lines of force are elliptical

C.

Direction of lines of forces depends upon direction of current

D.

Both (A) and (C)
10 A resistance used in voltmeter is called
A. shunt resistance
B. high resistance
C. low resistance
D. zero resistance

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