The voltage of clouds is ` 4 xx 10 ^( 6 ) ` volt with respect to ground. In a a lightening strike lasting 100 sec, a charge of 4 coulomb is delivered to the ground. The power of lightening strike is

Options

A. 160 MW
B. 80 MW
C. 20 MW
D. 500 kW

Explanation

To find the power of a lightning strike, we can use the relationship between power, voltage, charge, and time. Here’s how to solve the problem step by step:

### Step 1: Understand the formula for power
Power (P) is defined as the work done (W) per unit time (t). Mathematically, this can be expressed as:
\[ P = \frac{W}{t} \]

### Step 2: Relate work done to voltage and charge
In an electric field, the work done (W) when a charge (Q) moves through a voltage (V) is given by:
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