1. What is Ohm's Law?

Ohm's Law is a fundamental principle in electrical engineering that describes the relationship between voltage, current, and resistance in an electrical circuit. It 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 that voltage equals the product of current and resistance in a circuit.

3. Importance of Voltage Calculation

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

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: What if I know voltage and current but need resistance?
A: You can rearrange the formula as R = V/I to calculate resistance.

Q2: What if I know voltage and resistance but need current?
A: You can rearrange the formula as I = V/R to calculate current.

Q3: Does Ohm's Law apply to all electrical components?
A: Ohm's Law applies to resistive components but may not accurately describe components with non-linear characteristics like diodes and transistors.

Q4: What are typical voltage values in circuits?
A: Common voltages range from millivolts (mV) in small electronic devices to hundreds of volts in power systems.

Q5: How accurate is this calculation?
A: The calculation is mathematically precise for ideal resistors, but real-world components may have slight variations due to manufacturing tolerances.