Ohms lagkalkylator

Beräkna spänningen (V), ström (I), motstånd (R) eller kraft (P) med Ohms lagformel V = I × R. Ange två kända värden för att hitta de saknade.

V = I × R P = V × I P = I² × R

Calculator Input

Electric potential difference measured in volts
Electric current measured in amperes
Electrical resistance measured in ohms
Electrical power measured in watts

About Ohm's Law

Ohm's Law states that the current through a conductor between two points is directly proportional to the voltage across the two points. The law is named after German physicist Georg Ohm, who published it in 1827.

The mathematical representation is: V = I × R

  • V = Voltage (measured in volts)
  • I = Current (measured in amperes)
  • R = Resistance (measured in ohms)