This equation can be used to calculate what the output might be from a particular transformer, or to work out how to design a transformer to make a particular potential difference change: ...
There is a current of 2.0 A in a component with a resistance of 40 Ω. Calculate the potential difference across the component.
The electric potential at any point in space made by a point charge Q is presented by the formula given below. It is the electric potential energy per unit charge. The electric potential at any point ...