What is Ohm's law?
- Allen Olson
In physics, one area of study is electric circuits, and Ohm's law relates three key concepts of electric circuits: voltage, current, and resistance. These quantities have standard units of measurement and standard abbreviations when used in formulas:
- Voltage (V) is measured in volts (V).
- Current (I) is measured in amps (A).
- Resistance (R) is measured in ohms ().