Name: Electric Circuit as a Closed Path
Uploaded: 2019-07-19
Duration: 4 min 55 s
Description: Electric current flows from the positive terminal of the cell to the negative terminal in an electric circuit. See how a broken circuit can stop your torch f...

Question

You are given an eraser, a plastic scale and an iron nail. How will you differentiate them into conductor and insulator? Explain with the help of an activity?

Accepted Answer

A conductor allows an electric current to pass through it, but an insulator does not allow electricity to pass through it. Take a bulb, a cell, three pieces of wire, and a cello tape. Make an arrangement as shown below.

Try completing the circuit using an eraser, a plastic scale, and an iron nail one at a time. The following will be the result:

When the eraser is placed, the circuit is incomplete, it can be seen that the bulb will not glow. It shows that the eraser is an insulator.

When a plastic scale is placed, the circuit is incomplete, it can be seen that the bulb will not glow. It indicates that scale is an insulator.

When an iron nail is placed, the circuit is complete, the bulb will glow. This shows that the iron nail is a conductor.

You are given an eraser, a plastic scale and an iron nail. How will you differentiate them into conductor and insulator? Explain with the help of an activity?

Important Questions on Electric Current

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