Conversion - Watts, Amps, Voltage
Calculations of volts, amps, watts, and power are easily explained using Ohms Law. Ohms Law is the relationship of any DC circuit. Use the image on the right displays the relationships.
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- Converting Watts to Amps - If you know Watts and Volts
- The conversion of Watts to Amps is governed by the equation Amps = Watts/Volts (I = W/V)
Example: 10W/5V = 2A - Converting Watts to Volts - If you know Watts and Amps
- The conversion of Watts to Volts is governed by the equation Volts = Watts/Amps (V = W/I)
Example: 100W/10A = 10V
Example: 48W/12A = 4V - Converting Amps to Watts - If you know Amps and Volts
- The conversion of Amps to Watts is governed by the equation Watts = Amps x Volts (W = I · V)
Example: 1A * 110V = 110W - Converting Amps to Volts - If you know Volts and Wattage is fixed
- The conversion of Amps to Volts is governed by the equation Amps = Watts/Volts (I = W/V)
Example: 48W / 12A = 4V - Converting Volts to Watts - If you know Amps and Watts
- The conversion of Volts to Watts is governed by the equation Watts = Amps x Volts (V = W/I)
Example: 1.5A * 12V = 18W
Example: 120W/110V = 1.09A
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- W - Watts or Wattage
- I - Amps or Ampere
- V - Volts or Voltage