1. What is Ohm's Law?

Ohm's Law states that the voltage across a conductor is directly proportional to the current flowing through it, with the constant of proportionality being the resistance.

2. How Does the Calculator Work?

The calculator uses Ohm's Law equation:

Where:

• \( V \) — Voltage (Volts)
• \( I \) — Current (Amperes)
• \( R \) — Resistance (Ohms)

Explanation: The equation shows the relationship between voltage, current, and resistance in an electrical circuit.

3. Importance of Voltage Calculation

Details: Calculating voltage is essential for designing electrical circuits, selecting appropriate components, and ensuring safe operation of electrical systems.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between voltage and current?
A: Voltage is the electrical potential difference, while current is the flow of electrical charge.

Q2: Can I calculate current if I know voltage and resistance?
A: Yes, using the rearranged formula: \( I = V / R \).

Q3: What are typical resistance values in circuits?
A: Resistance values vary widely from milliohms in wires to megaohms in insulators, depending on the application.

Q4: Does Ohm's Law apply to all materials?
A: Ohm's Law applies to ohmic materials. Some materials like diodes and transistors are non-ohmic.

Q5: How accurate is this calculation?
A: The calculation is mathematically precise, but real-world factors like temperature and material purity may affect actual values.