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- Current & resistance to power (DC)
- Power & current to resistance (DC)
- Power & voltage to current (DC)
- Voltage & resistance to current (DC)
- Power & resistance to voltage (DC)
Use this calculator to determine the current in microamp, milliamp or ampere units, generated by a direct current (DC) electrical circuit for a specified power and resistance. Two conversion scales show how the current will vary when the power or resistance is changed independently, whilst the other remains fixed with the entered value.
The formula used by this calculator to determine the DC current from the power and resistance of the circuit is:
I = √ (P / R)
- I = Current (DC)
- P = Electrical power (DC)
- R = Resistance (DC)
This is the electrical power generated in a DC electrical circuit.
This is the electrical resistance of the DC electrical circuit
This is the electrical current that will flow through the DC electrical circuit with the specified power and resistance.