all the electrical circuits in your house are ultimately connected to the surfac

Question

all the electrical circuits in your house are ultimately connected to the surface of the earth (electricians call the ground). circuits are arranged so that charges head toward the ground-which is the loerstrd potential energy they have. given this fact, consider the following circuits. in both figures the radio is plugged into the wall and current is flowing through the sites. compare what might occur in figure A and in figure B when the person is drt, and figure B when the person is set. no math just words.
a) in figure A, the sites inside the radio are in contact with the plastic case. the person is holding the plastic case of the radio.
b) in figure B, there is a break in the case and the sites inside the radio are in contact with the person

Explanation / Answer

When person is dry
In case of figure a person is safe as the resistance of plastic body will insulate him from the wire circuit and almost zero current will pass through him
In case of figure B when he is in contact with circuit of radio his resistance of dry body is 8 times that of radio circuit so a small amount of current will pass through his body.

when person is wet
in case of figure B as body resistance of wet body is lower then radio circuit a large amount of current comparable to circuit will pass through his body and he will feel a shock.

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