It is not advised to touch electrical appliances with wet hands in the laboratory because water is a good conductor of electricity. When electrical appliances come into contact with water, it increases the chance of electrical current passing through the body, resulting in electric shock. Electric shocks can cause severe injuries, including burns, cardiac arrest, and even death in some cases. Moreover, water can damage the electrical appliances or cause a short circuit, leading to potential fires or other accidents. It is crucial to keep hands and the environment dry while working with electrical equipment to ensure personal safety and prevent equipment damage.
