Current Divider Calculator

Enter the current of the source and the resistance of the resistors into the calculator. The calculator will display the current through each resistor entered.

Current Divider Formula

The following formula is used to calculate the current going through an individual resistor of a series of resistors.

IR = IS * R / Rtotal

  • Where IR is the current through the current resistor (amps)
  • IS is the source current (amps)
  • Rtotal is the total of all the resistors in the series (ohms)
  • R is the resistance of the individual resistor (ohms)

How to calculate a current divider

  1. First, measure the source current

    Measure the source current value in Ohms.

  2. Next, measure the resistance of the individual component

    This will be the resistance of the component only, which could be anything from a resistor to a capacitor.

  3. Determine the total resistance

    Add of the total resistance of all of the components in the series

  4. Calculate the the current

    Calculate the current in the individual resistor using the information from steps 1-3 and the equation presented above.

FAQ

What is a resistor?

A resistor is an electrical component that presents a resistance to the flow of current. It’s typically used to split currents and voltages between pathways.

What is a current divider?

A current divider is typically a series of resistors set up in parallel that split the current of a source.

current divider calculator

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