Electric Resistance
Resistance \(\:(R)\:\) is the ability to resist or prevent the flow of current. In order to overcome the resistance and get the current to flow a higher voltage will be required. Resistance is measured in Ohms, represented by \(R\) and has a symbols \(\Omega\).
Ohm is a unit of resistance. A constant current of one ampere produces a force of one volt.
Electric Resistance (Ohm) formulas
\(\large{ Ohms = \frac{Volts}{Amps} = R = \frac{V}{I} }\) | |
\(\large{ Ohms = \frac{Volts^2}{Watts} = R = \frac{V^2}{P} }\) | |
\(\large{ Ohms = \frac{Watts}{Amps^2} = R = \frac{P}{I^2} }\) |
Where:
\(\large{ R }\) = resistance
\(\large{ V }\) = volt
\(\large{ I }\) = current
\(\large{ P }\) = power
Tags: Equations for Electrical