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Power & Electrical Resistance to DC Current Calculator

DC Electrical Circuit Current Parameters
Power (P) [?]
Resistance (R) [?]
Calculate DC Electrical Current
Current (I) [?]

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Contents

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  • User Guide
    • Formula
      • Symbols
    • Power (P)
    • Resistance (R)
    • Current (I)

User Guide

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.

Formula

The formula used by this calculator to determine the DC current from the power and resistance of the circuit is:

I = √ (P / R)

Symbols

  • I = Current (DC)
  • P = Electrical power (DC)
  • R = Resistance (DC)

Power (P)

This is the electrical power generated in a DC electrical circuit.

Resistance (R)

This is the electrical resistance of the DC electrical circuit

Current (I)

This is the electrical current that will flow through the DC electrical circuit with the specified power and resistance.

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