Question

During lightning strikes from a cloud to the ground, currents as high as 2.50×104 A can occur and last for about 40.0 μs . How much charge is transferred from the cloud to the earth during such a strike?

Answer 1

Answer:

The charge transferred from the cloud to earth is 1 Coulomb.

Explanation:

Given :

Current $I = 2.5 \times 10^{4}$ A

Time $t = 40 \times 10^{-6}$ sec

We know that the current is the rate of flow of charge.

From the formula of current,

 $I = \frac{Q}{t}$

Where $Q =$ charge transfer between cloud and earth.

 $Q =I t$

$Q = 2.5 \times 10^{4} \times 40 \times 10^{-6}$

$Q = 1$ C

Hence, the charge transferred from the cloud to earth is 1 Coulomb.