Question

What is the difference between current flowing through metals and current flowing through liquids ?​

Answer 1

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Metal conduct electricity with the help of free electrons whereas in liquids, ions are mainly responsible for the conduction of electricity. Some liquid which have free electrons also conducts electricity for example mercury.

Answer 2

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Metal conduct electricity with the help of free electrons whereas in liquids, ions are mainly responsible for the conduction of electricity.

Some liquid which have free electrons also conducts electricity for example mercury.