Electricity and circuits

Cell is a device which

• Converts chemical energy into electrical energy

• electrical energy to light energy

• electrical energy to magnetic energy

• none of these

A bulb💡 has

• two terminals and two filaments

• two terminals and one filament

• multiple terminals and single filament

• single terminal and single filament

Bulb glows only in

• Open circuit

• Closed circuit

• in both circuits

• open circuit if bulb is not fused

A substance which allows electricity to pass through it is called

• Conductor

• Insulator

• Semiconductor

• Superconductor

Which of the following is a conductor

• Paper

• Cotton

• Plastic

• Iron rod

Rubber and wood are good conductors of electricity

• True

• False

Handles of electrical appliance are made up of insulators

• True

• False

An electric cell

• uses electricity

• uses light

• produces electricity

• none of the above

If we touch a wire carrying current we get a shock. This is because our body is a or an

• Insulator of electricity

• Source of electricity

• Conductor of electricity

• Both a and b

Why are electric wires used in home usually covered with materials like plastic or rubber

• To prevent rusting

• To make handling easier

• To prevent shock and short circuit

• To make them look beautiful