Falling raindrops frequently develop electric charges. does this create noticeable forces between the droplets? suppose two 1.8 mg drops each have a charge of +25 pc; these are typical values. the centers of the droplets are at the same height and 0.40 cm apart. what is the approximate electric force between them?

The electric force is

Solution:

As we know that the Charge on droplet is,

Distance between the 2 droplets,

r = 0.40 cm = 0.004 m

Now, the Electrostatic force given by Coulomb:

here we will plug in data into above equation

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this means that the temperature of both substances will be equal