Ohm's Law & Watt's Law Calculator
Electrical Properties
-
Electromotive Potential
Measured in Volts, is represented by the letter V (or E)
-
Current
Measured in Amperes, is represented with the letter I
-
Resistance
Measured in Ohms, is represented by the letter R (or the Greek letter Ω)
-
Power
Measured in watts, is represented by the letter W
Ohm's Law
States the relationship between voltage, current and resistance. Given the relationship between these three elements, once you know any two of them, it is possible to calculate the third.
-
V = IR
Volts = Amps x Ohms
-
I = V/R
Amps = Volts / Ohms
-
R = V/I
Ohms = Volts / Amps
Watt's Law
Watt's Law is similarly useful in figuring out the relationship between power, voltage and current.
-
W = VI
Watts = Volts x Amps
-
V = W/I
Volts = Watts / Amps
-
A = W/V
Amps = Watts / Volts
Block ads by default when you upgrade.
💥 Arc flash incidents can have serious consequences. Engage in the conversation to share your insights, lessons learned, and preventive measures from arc flash. Let's create awareness and promote safety in electrical systems. Join the conversation