Question

Which of these is a good electrical conductor?

• A. Water
• B. Sweat
• C. The human body
• D. All of the above

Answer 1

Answer: (D)

All of the above

Water is a good electrical conductor but not distilled water. Tap water, Sea water, rain water etc. conduct electricity as they consist of impurities; salts of $Ca,Mg,Na$ which behave as charge carriers.

Sweat conducts electricity although it is mainly water, it still consists of lot of minerals, lactic acid, urea; in short, it is an ionic liquid (electrolyte)

Human body consists of $75$% of water and also consists of many minerals and salts. So human body also conducts electricity.