Final answer:
Static electricity shocks on dry days from touching metal are common but typically harmless due to low current flow despite high voltage involved.
Explanation:
Static electricity shocks can occur more frequently on dry days due to lower humidity levels, which increase the likelihood of charge buildup through friction. When you touch metal, the excess charge built up on your body discharges, creating a shock feeling.
Although a static electricity shock can carry hundreds of watts of power, it typically has low current and short duration, so it is usually harmless and does not result in injury to the person receiving the shock.
This lack of injury is due to the insufficient current flow through the body, as high resistance in the body limits the flow of current, preventing harm despite the high voltage involved.
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