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how to calculate ohms law. Ohms Law Calculator Use this Ohms Law calculator to easily calculate the power resistance voltage or electrical current based on two known parameters. In this formula V stands for voltage in volts I stands for current in amperes and R stands for resistance in ohms.
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Calculate Power Current Voltage or Resistance. V IR Step 3. Now you can calculate the current by using the voltage and the resistance.
I 002 A 20 mA milli Ampere So the current in the circuit is 20 mA.
V IR Step 3. Enter any two parameters to calculate the other two. Heres an example of how to calculate voltage in a circuit with a lamp powered by the two AA cells. This tool is used to calculate power current voltage or resistance.
