Equivalent Resistance Calculator

The Equivalent Resistance Calculator helps users calculate the equivalent resistance, total current with a 12V source, and total power dissipated for resistors in either series or parallel configurations.

Use Our Equivalent Resistance Calculator

How to Use the Equivalent Resistance Calculator

This guide will walk you through the steps to use the Equivalent Resistance Calculator effectively. By following these steps, you’ll be able to calculate the equivalent resistance for both series and parallel circuits, determine the total current with a 12V source, and calculate the total power dissipated.

Step 1: Select the Circuit Connection Type

Begin by selecting the type of circuit connection you are working with. There are two options available:

  • Series Connection – Choose this if your resistors are connected in series.
  • Parallel Connection – Choose this if your resistors are connected in parallel.

Step 2: Enter the Resistance Values

Next, you need to input the resistance values for your circuit:

  • Resistance 1 (Ω): Enter the value of the first resistor. This is a required field, so make sure to provide a value of at least 0.0001.
  • Resistance 2 (Ω): Enter the value of the second resistor. Like the first resistor, this is also required and must be 0.0001 or higher.
  • Resistance 3 (Ω): If applicable, enter the value of the third resistor. This field is optional, and if left blank, it will default to zero in the calculations. Ensure any values entered are at least 0.0001.

Step 3: Review the Calculation Results

Once all appropriate values are entered, the calculator will automatically compute the following:

  • Equivalent Resistance: This result will display the calculated equivalent resistance of your specified circuit type. It is formatted to four decimal places with a suffix of ‘Ω’.
  • Total Current (with 12V source): This value indicates the total current flowing through the circuit with a 12V source applied. It is also displayed to four decimal places, formatted in amperes (A).
  • Total Power Dissipated: This result shows the total power being dissipated in the circuit, based on the voltage and current calculated. It is provided in watts (W) with four decimal precision.

Using these results, you can analyze and understand the electrical characteristics of your resistor circuit efficiently. Ensure all input values are correct and reasonable to gain the most accurate results from the calculator.