IS_Section Quiz_8.3-8.4_e

Electric current is the flow of free electrons.

• True

• False

In a closed circuit with an electric cell, the protons flow towards the negative pole of the cell.

• True

• False

An electromagnet is a current-carrying coil acting like a magnet.

• True

• False

Voltage is a measure of the amount of energy supplied to the free electrons by a source of electricity.

• True

• False

When current increases, the voltage in a circuit decreases.

• True

• False

All electrons in an atom are free electrons.

• True

• False

The conventional current is a flow of positive charges from the positive pole of the electric cell to the negative pole.

• True

• False

The heating effect is larger if the electric current is larger.

• True

• False

The unit of voltage is volt.

• True

• False

When several electric cells are connected end-to-end in different directions, the voltage across them is higher.

• True

• False