A person in bare feet is standing under a tree during a thunderstorm, seeking shelter from the rain A lightning strike hits the tree A burst of current lasting 40 s passes through the ground during this time the potential difference between his feet is 20 kV If the resistance between one foot and t...

Strategy a The current that flows through the body of the person is equal to the potential differenc ...

A person in bare feet is standing under a tree during a thunderstorm, seeking shelter from the

Question:

A person in bare feet is standing under a tree during a thunderstorm, seeking shelter from the rain. A lightning strike hits the tree. A burst of current lasting 40 μs passes through the ground; during this time the potential difference between his feet is 20 kV. If the resistance between one foot and the other is 500 Ω,

(a) What is the current through his body and

(b) How much energy is dissipated in his body by the lightning?

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