Quiz 20 – APS Physics

Welcome

Get Ready for the Quiz !

Passing percentage = 60%

Time Out !

Magnetism

1 / 10

Appliances that have a metallic body are generally connected to earth wire. The correct reason is

to provide a high resistive path to the electric current in case a leakage of current to the metallic part of the appliance

to provide a lower resistance to the appliance

to provide extra current to the appliance

to provide a low resistive path to the electric current in case a leakage of current to the metallic part of the appliance

2 / 10

Under what condition does a moving charge particle experience minimum force?

when charge particle is moving perpendicular to the magnetic field

when charge particle is moving parallel to the magnetic field

When charge particle is moving according to Fleming's left hand rule

When the charge is an electron

3 / 10

Which of the following is not a property of magnetic field lines?

magnetic field lines always form closed curve

magnetic field vanishes inside the magnet

outside the magnet, field lines travel from north pole to the south pole

Magnetic field lines never intersect each other

4 / 10

In Fleming's left hand rule, the thumb represents:

force

field

potential difference

current

5 / 10

What should be the characteristic of an electric fuse wire?

high melting point and high resistivity

high melting point and low resistivity

low melting point and high resistivity

low melting point and low resistivity

6 / 10

Magnetic field is produced by the flow of current in a straight wire. This phenomenon was discovered by

Oersted

Tesla

Fleming

Faraday

7 / 10

Under what condition does a moving charge particle experience maximum force?

When the charge of the particle is zero

When charge particle is moving according to Fleming's left hand rule

when charge particle is moving perpendicular to the magnetic field

when charge particle is moving parallel to the magnetic field

8 / 10

In what respect, solenoid is similar to that of bar magnet ?

The strength of magnetic field cannot be changed in both

Same current flows in both

the magnetic field of solenoid is similar to that of bar magnet

poles can be interchanged in both solenoid and bar magnet

9 / 10

In right hand thumb rule, the thumb and fingers represents :

thumb - electric current ; fingers - field

thumb - field ; fingers - electric current

thumb - force ; fingers - field

thumb - electric current ; fingers - force

10 / 10

The SI unit of magnetic field is

tesla

oersted

volt

ampere

The average score is 85%

Exit