Question

What are the two methods of testing an insulator or conductor?​

Answer 1

Answer

Two method of testing insulator or conductor.

1.) We use an electric lamp to test the conductivity.Here's an electric lamp is attached in electric circuit. The substance whose conductivity is to be checked also connected to the circuit.On passing current through the substance,if the lamp glows then it is considered as good conductor of electricity.

But the lamp will not glow when the current through the substance is weak .

To detect the presence of small value current,magnetic compass is required.

2.) Electric compass is coiled with conductive wire.When current is allowed to pass through it ,it creates a magnetic field and the compass shows the deflection,showing the presence of current in circuit.

Thanks

Answer 2

Explanation:

this is the answer ok bye