In the 21st century most people will interpret “Ohm … Ohm” as the exhalation in yoga (Hatha yoga). Therefore, take a deep breath, hold it for a while (twice as long) and then exhale (thrice as long), for example. Now you are perfectly set up to read about Georg Simon Ohm (1789 – 1854), the physicist after whom Ohm’s law was named. In the “All electric society” Ohm’s law still plays a fundamental role for all households. The understanding of electric circuits is quite easy, just apply the basic relationship of Ohm’s law. In a resistor the current and voltage are proportional. The sign (SI) for resistance (R in physics) of a conductor is the Greek letter Ω. The proportionality is expressed as R = V/I where V is the Voltage and I the current through the conductor. The units are Ω, Volt V, Ampere A. All you need to know additionally is the calculation of the power P in Watt W where P = V x I for example. If you want or need to dig deeper into your home electricity just study a bit of electrical technology on the basics.
In our homes, apartments or offices we can apply this 200 years old knowledge to guide the safety and energy consumption of our electric installations. Maybe with the help of a spreadsheet programme like excel etc.
