Ohm’s law and Qualitative analysis of circuits
Electric currents in the body A person accidentally touches a 120-V electric line with one hand while touching a ground wire with the other hand. Determine the current through the body when the hands are dry (100,000- ? resistance) and when wet (5000-? resistance). If the current exceeds about 10 mA, muscular contractions may prevent the person from releasing the wires—a dangerous situation. Is the person in danger with dry hands? With wet hands? Explain.
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