Power Dissipation Calculator

Enter the total current moving through the resistor and the total resistance into the calculator to determine the power dissipation.

Power Dissipation Formula

The following formula is used to calculated the total power dissipated by a resistor.

p = i2 * R

  • Where p is the dissipated power (W)
  • I is the current moving through the resistor (amps)
  • R is the total resistance (ohms)

FAQ

What is power dissipation?

Power dissipation is the total reduction in power that occurs due to a resistance to the flow of electricity. In most cases this resistance comes in the form of a resistor.


Example

How to calculate power dissipation?

  1. First, determine the resistance.

    Measure the total equivalent resistance of the resistor or circuit.

  2. Next, determine the current.

    Measure the current flow through the circuit or resistor.

  3. Finally, calculated the dissipated power.

    Using the resistance and current, along with the formula, calculate the total dissipated power.

power dissipation calculator
power dissipation formula

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