ELECTRICITY AND CIRCITS

Electricity we use in our homes is supplied from a-

• power stations

• Power House

Which of the following are conductors? (Select all that apply.)

• Wood

• Iron

• rubber

• humans

Why is tungsten used as a filament in electric bulbs?

• It has a high melting point

• It has a low melting point

Rita connected two bulbs across two cells in a simple circuit. What should she do to make the bulbs glow dimmer?

• Replace one cell with a piece of wire

• Replace one cell with a piece of cat

We use .................. to test the conductivity of a material.

• Conduction Tester

• cat tester