Question

Select non-conductors of electricity from the following:
A) Water
B) Pure water
C) Rubber
D) Paper

Answer 1

Hint: Non-conductors of electricity is nothing but an insulator.an insular is a substance which does not allow current flow through them. There is no free electron in insulators and insulators which are bad conductors of electricity. Wood, air, plastic and glass are some materials which are bad conductors of electricity.

Complete step-by-step solution:
Conductor is the substance which allows electricity or current to flow through them. Conductors which allow electrons to flow easily inside them.
Semiconductor is materials which have conductivity between conductors and insulators. Examples of semiconductors are silicon or germanium. Semiconductor will have high thermal conductivity.
As we all know that rubber and paper do not allow current so they are non-conductor of electricity .
Pure water is also a bad conductor of electricity. Current will flow due to ionic concentration in pure water there is less ionic concentration.
Water is a conductor of electricity. You may have observed when an electric wire comes in contact with water a spark will occur or else if a person touches that water he gets electric stock.
Water which contains some dissolved contents like salts and current will flow due to ionic concentration.

Note:Students in conductor’s free electrons are present. As the ionic concentration increases the current flow also increases and SI unit of current is Ampere (A).Semiconductors will have some properties that are variable electrical conductivity, heterojunctions, light emission, excited electrons and thermal energy conversion.