Q. 175.0( 3 Votes )

Give an activity to examine the behaviour of the following solid materials towards electricity: plastic, copper, rubber, wood, graphite.

Class 8th All in One - Science 14. Chemical Effects of Electric Current

Answer :

● Take a torch bulb and connect its positive terminal to the positive terminal of the battery and negative terminal to the object to be tested.

● Connect the negative terminal of the battery to the object with a wire.

● Do not touch the object when the current is passing through it.

● If the bulb glows, then the material is conducting else not.
We see that graphite and copper conduct electricity whereas rubber, plastic and wood do not.

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