Source Voltage Calculator

If you're in need of calculating the voltage of a source, look no further than our Source Voltage Calculator. This tool is designed to make measuring voltage a breeze, no matter your level of expertise in the field. With our calculator, you can input various values and get an accurate voltage reading in no time. Whether you're a seasoned professional or just starting out, our Source Voltage Calculator is an essential tool you won't want to be without. So why wait? Try it out for yourself today!

Source Voltage Calculator

Calculate the source voltage based on the given parameters

Source Voltage Calculator Results
Current (A)0
Resistance (Ω)0
Power (W)0
Voltage Drop (V)0
Source Voltage0

In electrical engineering and audio systems, understanding source voltage is essential. Our source voltage calculator pairs well with the speaker voltage calculator, facilitating voltage calculations for audio equipment.

How to Use the Source Voltage Calculator

The Source Voltage Calculator is a powerful tool designed to calculate the source voltage based on various parameters. It is particularly useful in electrical engineering and allows for quick and accurate source voltage calculations.

Instructions for Utilizing the Calculator

To use the Source Voltage Calculator, follow these simple steps:

  • Current (in Amperes): Enter the value of the current flowing through the circuit in amperes (A). The current represents the rate of flow of electric charge in the circuit.
  • Resistance (in Ohms): Specify the resistance in the circuit in ohms (Ω). Resistance measures the opposition to the flow of current and is an essential component of the circuit.
  • Power (in Watts): Input the power consumed or supplied by the circuit in watts (W). Power represents the rate at which energy is transferred in the circuit.
  • Voltage Drop (in Volts): Enter the voltage drop across the circuit component or elements in volts (V). Voltage drop measures the difference in electric potential across a circuit element.
  • Calculate Source Voltage: Click the Calculate Source Voltage button to obtain the calculated source voltage based on the provided parameters.
  • Interpreting the Results: The calculator will display the calculated source voltage in volts. The source voltage represents the electromotive force supplied by the source to the circuit.

Source Voltage Calculator Formula

The Source Voltage Calculator employs different formulas based on the available parameters:

  • Current and Resistance: If both the current and resistance are provided, the source voltage can be calculated using the formula: Source Voltage = Current * Resistance.
  • Power and Current: If the power and current values are provided, the source voltage can be determined using the formula: Source Voltage = Power / Current.
  • Current and Voltage Drop: If the current and voltage drop are specified, the source voltage can be calculated using the formula: Source Voltage = Voltage Drop + (Current * Resistance).
  • Resistance and Voltage Drop: If the resistance and voltage drop are given, the source voltage can be determined using the formula: Source Voltage = Voltage Drop / (1 - (Voltage Drop / Resistance)).

Illustrative Example

Let's consider an example to illustrate the use of the Source Voltage Calculator. Suppose we have a circuit with a current of 2A, a resistance of 10Ω, a power of 50W, and a voltage drop of 2V. By inputting these values into the calculator, we find that the source voltage is approximately 20V.

Illustrative Table Example

Here's an example table showcasing the calculation of the source voltage for different sets of input values:

Current (A)

Resistance (Ω)

Power (W)

Voltage Drop (V)

Source Voltage (V)


The Source Voltage Calculator is a valuable tool for electrical engineers and enthusiasts. By providing the necessary input parameters, you can quickly and accurately calculate the source voltage. Understanding the source voltage is crucial for effective circuit analysis and design. Utilize this calculator to simplify your electrical calculations and enhance your understanding of source voltages.

About the Author

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Shuvo Shaha
Python Developer

Shuvo Shaha is a skilled Python developer with expertise in developing efficient and user-friendly web applications. He is passionate about writing clean and maintainable code and is always exploring new technologies to improve his skills. With a strong background in computer science, Shuvo has experience working with a variety of frameworks and libraries, including Django and Flask. He is a collaborative team player who is dedicated to delivering high-quality work on time and on budget.