Electric resistance can be determined by using the relationship between electrical power and electrical potential. The formula for this relationship is: electric power = (electrical potential)^2 / electrical resistance. By rearranging this formula, we can solve for electrical resistance as: electrical resistance = (electrical potential)^2 / electric power. This means that if we know the electrical power and electrical potential of a circuit, we can calculate the electrical resistance. This is a useful calculation in designing and analyzing electrical circuits.
An alternative formula for determining the resistance can be derived from:
\(R\): the resistance
\(V\): the electric potential
\(P\): the electric power
The SI unit of electric resistance is: \(ohm\text{ }(\Omega)\)
Find R
Use this calculator to determine the resistance when the electric potential and the electric power are given.