A person notices a mild shock if the current along a path through the thumb and index finger of one hand exceeds 80 ìA.

Question

In volts, calculate the maximum allowable potential for a hand with moist skin with a resistance of 67.7 kÙ.
please help i am getting the wrong answer.why does it says exceeds 80 micro amperes?

Answer 1

The units you select must be compatible:

V = IR = 80uA * 0.0677 Megohms = 5.42 Volts.

V = 0.08mA * 67.7K Ohms = 5.42 Volts.

V = 80*10^-6Amps * 67.7*10^3 Ohms = 5.42 Volts.