Magnetism

What happens when you bring a compass close to a wire carrying an electric current?

• The compass needle points to the cable carrying the current

• The compass needle stops working.

• The compass needle spins around.

• The compass needle doesn't move at all.

What are the poles of a magnet called?

• North and South

• Positive and Negative

• Up and Down

• Red and blue

Magnets can exist as a single pole

• True

• False

Magnets can exist only with both North and South pole?

• True

• False

The north pole of a magnet attracts the north pole of another magnet

• True

• False

The south pole of a magnet attracts the north pole of another magnet.

• True

• False

Current flowing through a wire applies a force to nearby magnets.

• True

• False

Current flowing through a wire applies a force to other wires without current

• True

• False

Magnet do not exert a force on a current flowing through a wire

• True

• False

What is the main factor that protects us from the radiation on the sun?

• The magnetic field of the Earth

• The electric current inside the Earth

• The combination of all magnetic field of every person

• The ozone layer