A lightning strike can transfer 1020 electrons from the cloud to th...

Question

A lightning strike can transfer 1020 electrons from the cloud to the ground in 2 minutes. The average electric current flown from cloud to the ground is –

Accepted Answer

$Q=ne=10^{20}	imes1.6	imes10^{-19}=16$ C, over $t=2	ext{ min}=120$ s $$I=\frac{Q}{t}=\frac{16}{120}\approx1.33	imes10^{-1}	ext{ A}$$ Answer: (D) $1.33	imes10^{-1}$ A

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