To understand why the voltage level is not the sole RSPECWE determinant of potential
Chapter 2, Problem 2.38(choose chapter or problem)
To understand why the voltage level is not the sole RSPECWE determinant of potential injury due to electrical shock, consider the case of a static electricity shock mentioned in the Practical Perspective at the start of this chapter. When you shuffle your feet across a carpet, your body becomes charged. The effect of this charge is that your entire body represents a voltage potential. When you touch a metal doorknob, a voltage difference is created between you and the doorknob, and current flowsbut the conduction material is air, not your body! Suppose the model of the space between your hand and the doorknob is a 1 Mfl resistance. What voltage potential exists between your hand and the doorknob if the current causing the mild shock is 3 mA?
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