609 Electricity 1.1-1.3

A single cell is sufficient to operate TV, computers and other appliances at home.

• True

• False

The SI unit of electric current is ampere (A).

• True

• False

Electric current flows from negative to positive.

• True

• False

The spark of electricity in air which is seen as a flash of lightning is an electrical current coming from nature.

• True

• False

An atom in which the electrons are loosely bound has a tendency to lose electrons very easily.

• True

• False

An Ammeter is a device used for measuring current in an electric circuit.

• True

• False

An atom is electrically ______ when the total number of protons is _____ to the total number of electrons.

Electric current flows from ______ .

• negative to positive

• positive to negative

The SI unit of electric current is ______.

Any phenomenon associated with stationary or moving charges is known as ______.