Applied Voltage Calculator


About Applied Voltage Calculator (Formula)

An Applied Voltage Calculator is a powerful tool in the field of electrical engineering and electronics. It is used to determine the voltage across a particular component or point in an electrical circuit when a known voltage is applied to the circuit. Understanding the voltage distribution in a circuit is fundamental for designing, analyzing, and troubleshooting electrical systems. This calculator relies on Ohm’s Law and basic principles of electrical circuits to perform its calculations.

The formula used by the Applied Voltage Calculator is derived from Ohm’s Law, which states that the voltage (V) across a component is equal to the product of the current (I) flowing through it and its resistance (R). Mathematically, Ohm’s Law is expressed as:

V = I × R


  • V represents the voltage across the component (in volts, V).
  • I is the current flowing through the component (in amperes, A).
  • R denotes the resistance of the component (in ohms, Ω).

To use the Applied Voltage Calculator, you typically need two of these three values: voltage (V), current (I), and resistance (R). By rearranging the formula, you can calculate the unknown value. For example:

  • To find voltage (V): V = I × R
  • To find current (I): I = V / R
  • To find resistance (R): R = V / I

The calculator is invaluable for a wide range of applications. For instance, in electronics, it helps determine the voltage drop across a specific resistor, diode, or any other component in a circuit. In electrical engineering, it is essential for analyzing power distribution, voltage regulation, and safety considerations.

Moreover, this calculator plays a pivotal role in diagnosing faults and troubleshooting electrical problems. By measuring current and resistance, it can reveal unexpected voltage drops or irregularities, allowing engineers and technicians to pinpoint issues and make necessary adjustments or repairs.

In summary, the Applied Voltage Calculator is a fundamental tool in electrical engineering, electronics, and various related fields. Its ability to calculate voltage, current, or resistance within an electrical circuit makes it an indispensable instrument for designing, analyzing, and maintaining electrical systems, ensuring their efficiency, safety, and reliability.