Basic formula to Calculate Voltage from energy and Coulomb

In Electrical Engineering voltage is defined as the difference in potential energy. Its basic unit is volt which is defined as the one joule of energy required to move one coulomb of charge from one point to another.

Mathematically,
V = W/Q,

where
V = voltage in volts
W = energy in joules
Q = charge in coulombs

Also, learn other basic units.
Example: 50 J energy is required to move a charge of 2 C from one point to other. Find the voltage between two points.
basic-formula-to-calculate-voltage-from-energy-and-coulomb

Solution: V = W / Q = 50 J / 2 C = 25 V

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