What is the naturally occuring magnets?
Soft Iron
Magnetite
Manganese
Boaxite
In which directions of the Earth, a freely suspended magnet always align?
North - South
North - West
East - West
South - East
Maxwell's right hand thumb rule is used for,
finding the direction of current
finding the direction of magnetic field
finding the strength of magnetic field
finding the amount of current
Which rule tells us the direction of field lines?
Maxwell's right hand thumb rule
Right hand corkscrew rule
Left hand magnetic rule
None of these
The space where the magnetic power felt is its magnetic
poles
field
axis
strength
The angle between the Earth's magnetic field and the Earth's spin axis is
23.3 °
10 °
11 °
13.5°
Which of the following is a magnetic material?
Cobalt
Aluminium
Copper
Steel
The armature of a electric door bell is made up of
Soft iron bar
Nickel
When we stop the current flow through an electromagnet, what happen?
It becomes an ordinary wire
It becomes a permanent magnet
It becomes an artificial magnet
It becomes an insulator
Which property of a magnet is used in the magnetic compass?
Directive property
Attractive property
Both directive and attractive property
Neither directive nor attractive
