The resistance between two well-separated points on the human body is about1.5 x 10. If a potential difference of 120 V is applied across these points, how much current is generated? (b) If the skin is wet, the resistance drops to 5.0 x 10. What will the current be in this case for an applied potential difference of 120 V?

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Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.