Potential difference across the rod during the strike

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Reference no: EM131240913

A lightning strike with current 2 × 105 A strikes a lightning rod and is grounded through a copper stake with length 2.5 m and radius 0.5 cm. (This is about the dimensions of a grounding rod from Lowes) The resistivity of copper is 1.7 × 10-8?m.

a) What is the resistance of the rod?

b) What is the potential difference across the rod during the strike?

c) What is the power dissipated in the rod during the strike?

d) If the strike lasts 3 × 10-4 s how much energy is dissipated in the rod?

Reference no: EM131240913

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