ELEX 06

The unit of magnetic flux density is the weber

• True

• False

• both A and B

• none of these

The ability of a material to maintain a magnetized state (without the presence of a magnetizing force) is called retentivity.

• True

• False

• both A and B

• none of these

Magnetic flux flows from the north pole to the south pole within the magnet

• True

• False

• both A and B

• none of these

The Hall voltage is the voltage created by a conductor moving through a magnetic field

• True

• False

• both A and B

• none of these

Ferromagnetic materials have pre-existing magnetic fields

• True

• False

• both A and B

• none of these

The unit of magnetic flux is the weber

• True

• False

• both A and B

• none of these

A voltage is induced across a conductor if it remains absolutely stationary within a magnetic field.

• True

• False

• both A and B

• none of these

When the south poles of two bar magnets are brought close together, there will be a force of attraction

• True

• False

• both A and B

• none of these

A magnetic field is produced around a current-carrying conductor

• True

• False

• both A and B

• none of these

A magnetic material such as iron can change the course of magnetic lines of force

• True

• False

• both A and B

• none of these