From the following which one is non magnetic material ?
Paper
Iron
Nickel
Cobalt
The property of certain objects to attracts iron objects is called :
Electricity
Viscosity
Magnetism
Surface tension
Which of the following substance is used for making temporary magnets ?
Steel
Copper
Soft iron
Aluminium
The magnetic force exerted by a magnet is depends on:
Density
Length
Thickness
Shape
Which of the folowing metals are used for making permanent magnet ?
All of these
Earth has how many geographical poles ?
1
2
3
4
How many poles a magnet has :
Area of magnetic influence formed by the grouping of atoms is called:
Electric domain
Magnetic domain
Nuclear domain
From the following magnets which one is the largest natural magnet ?
Bar magnet
lodestone
Earth
Horse shoe magnet
Choose the incorrect statement from the following :
Magnetic poles always exist in pairs
Poles of any magnets are regions of maximum magnetic strength
Magnetic lines of force intersect each other
The magnetic force exerted by a magnet depends on density of magnetic lines of force