1. What is the Voltage Calculation?

The voltage calculation using Ohm's law determines the electrical potential difference when current (in milliamps) flows through a resistance. This fundamental electrical calculation is essential for circuit design and analysis.

2. How Does the Calculator Work?

The calculator uses the voltage formula:

Where:

• \( mA \) — Current in milliamps
• \( Resistance \) — Resistance in ohms
• \( 1000 \) — Conversion factor from milliamps to amps

Explanation: This formula is derived from Ohm's Law (V = I × R), where current is converted from milliamps to amps by dividing by 1000.

3. Importance of Voltage Calculation

Details: Accurate voltage calculation is crucial for circuit design, component selection, power supply design, and ensuring electrical safety in various applications.

4. Using the Calculator

Tips: Enter current in milliamps and resistance in ohms. Both values must be positive numbers. The calculator will automatically compute the voltage in volts.

5. Frequently Asked Questions (FAQ)

Q1: Why divide by 1000 in the formula?
A: The division by 1000 converts milliamps to amps, as Ohm's Law requires current in amperes for voltage calculation in volts.

Q2: What are typical mA values in circuits?
A: Typical values range from microamps (μA) to several hundred milliamps, depending on the application and components used.

Q3: Can this calculator be used for AC circuits?
A: This calculator is designed for DC circuits. For AC circuits, additional factors like frequency and phase must be considered.

Q4: What if I have resistance in kilo-ohms?
A: Convert kilo-ohms to ohms first (1 kΩ = 1000 Ω) before entering the value, or adjust the calculation accordingly.

Q5: How accurate is this calculation?
A: The calculation is mathematically precise based on Ohm's Law, but actual circuit performance may vary due to component tolerances and other factors.