1. What is Ohm's Law?

Ohm's Law states that the current through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance between them. It is a fundamental principle in electrical engineering and physics.

2. How Does the Calculator Work?

The calculator uses Ohm's Law equation:

Where:

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

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

3. Importance of Ohm's Law

Details: Ohm's Law is essential for designing and analyzing electrical circuits, calculating power consumption, and troubleshooting electrical systems.

4. Using the Calculator

Tips: Enter current in Amps and resistance in Ohms. All values must be valid positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What are the units used in Ohm's Law?
A: Voltage is measured in Volts (V), current in Amperes (A), and resistance in Ohms (Ω).

Q2: Can Ohm's Law be applied to AC circuits?
A: Yes, but with modifications for impedance in AC circuits. The basic principle remains the same for resistive loads.

Q3: What is the power formula derived from Ohm's Law?
A: Power (P) can be calculated as P = V × I, or using variations P = I² × R and P = V² / R.

Q4: Are there limitations to Ohm's Law?
A: Ohm's Law applies to ohmic materials where resistance remains constant. It doesn't apply to non-ohmic materials like diodes and transistors.

Q5: How accurate is this calculator?
A: The calculator provides precise results based on the input values, following the mathematical principles of Ohm's Law.