A human being can be electrocuted if a current as small as 50 mA passes near the heart. An electrician working with sweaty hands makes good contact with two conductors being held in each hand. If the electrician’s resistance is , we have to estimate the fatal voltage.

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For answering this problem we will Ohm’s law. Relation between voltage, V, current, i, and resistance, R, is

Resistance of the electrician is

.

The fatal current is

.

The fatal voltage will therefore be