1. What is a Voltage Calculator by Ohm's Law?

Definition: This calculator determines the voltage in an electrical circuit based on current and resistance using Ohm's Law.

Purpose: It helps electricians, engineers, and electronics enthusiasts calculate voltage when current and resistance are known.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( V \) — Voltage (volts)
• \( I \) — Current (amperes)
• \( R \) — Resistance (ohms)

Explanation: The voltage across a conductor is directly proportional to the current flowing through it and its resistance.

3. Importance of Voltage Calculation

Details: Accurate voltage calculation is essential for circuit design, troubleshooting electrical systems, and ensuring proper operation of electronic components.

4. Using the Calculator

Tips: Enter the current in amperes and resistance in ohms. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is Ohm's Law?
A: Ohm's Law states that the current through a conductor between two points is directly proportional to the voltage across the two points.

Q2: What units should I use?
A: Use amperes (A) for current, ohms (Ω) for resistance, and the result will be in volts (V).

Q3: Does this work for AC and DC circuits?
A: This calculator works for DC circuits and AC circuits with purely resistive loads.

Q4: What if I know voltage and want to find current or resistance?
A: Use our other calculators: Current Calculator (I = V/R) or Resistance Calculator (R = V/I).

Q5: Why is my calculated voltage different from my multimeter reading?
A: Real-world factors like wire resistance, temperature effects, and component tolerances can cause differences.