For an electric shock to occur, a person must become a part of an electrical circuit in such a way that electric current passes over their skin or through their body. Under certain conditions, even momentary contact with an energized metal object can result in serious injury and even death. According to an article in the American Journal of Industrial Medicine:"Contact with live electrical wiring, equipment, and light fixtures was the main cause of electrical deaths and injuries among electrical workers, followed by contact with overhead power lines. Among non-electrical workers, contact with overhead power lines was the major cause of death. Other causes included contact with energized metal objects, machinery, power tools, and portable lights."From an engineering viewpoint, the body's electrical resistance is an important variable. Electrical resistance of an object is a measure of how freely electrical current can flow across the object when a voltage is applied
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