The electric field inside a battery generates an electric potential difference of 12 v. the plates are separated by a distance of 0.25 m. what is the strength of the electric field?

The electric field across the plates is defined by

E = V / d where V is the potential difference and d the distance that separates the plates.

E = 12 Volts/ 0.25 meters = 48 V/m 

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