Magnetic effects of electric current -1

Hans Christian Oersted, one of the leading scientists of the 19th century, played a crucial role in understanding

• magnetism

• electricity

• electromagnetism

• none

identify the scientist?

• otherstand

• edison

• newton

• oersted

In which year oersted discovered electromagnetism?

• 1980

• 1820

• 1850

• 1890

It was accidentally discovered that a compass needle got deflected when magnetic field passed through a metallic wire placed nearby.

• true

• false

Henry oxford accidentally discovered that a compass needle got deflected when an electric current passed through a metallic wire placed nearby.

• true

• false

Oersted showed that __________ and

magnetism were related phenomena.

• gravitation

• magnets

• electricity

• earth

A compass needle gets deflected when

brought near a bar magnet.

• false

• true

A compass needle is, in fact, a small _______ magnet.

• circular

• bar

• horse shoe

• cylindrical

like poles _________ , while unlike poles of magnets _______ each other.

• like, attract

• attract , repel

• repel , attract

• repel , repel

The region surrounding a magnet, in which the force of the magnet can be detected, is said to have a _______________.

• magnetic field

• electric field

• gravitational field

• both electric and magnetic field