John is changing a lightbulb in a lamp. It\'s a warm summer evening, and the res

Question

John is changing a lightbulb in a lamp. It's a warm summer evening, and the resistance of his damp skin is only 4800? . While one hand is holding the grounded metal frame of the lamp, the other hand accidentally touches the hot electrode in the base of the socket. The voltage of the socket is 120 V . Use the data shown in (Figure 1) .

What is the current through his torso?

John is changing a lightbulb in a lamp. It's a warm summer evening, and the resistance of his damp skin is only 4800? . While one hand is holding the grounded metal frame of the lamp, the other hand accidentally touches the hot electrode in the base of the socket. The voltage of the socket is 120 V . Use the data shown in (Figure 1) . What is the current through his torso?

Explanation / Answer

Here ,

Rskin = 4800 Ohm

Now , for the Hands touching live and ground wire

In series ,

Rs = 4800 + 4800 + 310 + 310 + 30

Rs = 10250 Ohm

using Ohm's law

V =I*R

120 = I*10250

I = 0.01171 A

the current throught the torso is 0.01171 A

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