Which of the following is not an artificial magnet?
bar magnet
magnetic compass
lodestone
horse shoe magnet
At neutral points, the resultant magnetic field is
high value
low value
zero
none of these
Which is the imaginary line joining the poles of a magnet?
Geometric axis
Magnetic axis
Length of the magnet
None of these
The unit of magnetic induction is
Oersted
weber
Tesla
Faraday
If the length of a magnet is L, then the effective length of the magnet is
6 L
The magnetic field lines of a non-uniform magnetic field are
converging
diverging
curved
all the above
For a magnet, the magnetism is minimum at
the poles
the middle point
along the equater
none of the above
What happen when a magnetic material kept near a magnet?
It becomes permanent magnet
Becomes temporarily magnet
No change occurs
An iron rod is buried inside earth along north-south direction, then it
becomes a magnet
becomes a non magnet
no change occur
The attractive property of a magnet is maximum at
north pole only
south pole only
north and south poles both
mid point of magnet