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.

2. How Does the Calculator Work?

The calculator uses the Ohm's Law equation:

Where:

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

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

3. Importance of Current Calculation

Details: Calculating current is essential for designing electrical circuits, selecting appropriate components, and ensuring safe operation of electronic devices.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: What if my resistance is zero?
A: Resistance cannot be zero in this calculation as it would result in division by zero (infinite current), which is not physically possible.

Q2: Does this work for AC circuits?
A: This simple form applies to DC circuits. For AC circuits, you need to consider impedance which includes resistance and reactance.

Q3: What are typical current values?
A: Current varies widely depending on application - from microamps in small electronics to hundreds of amps in industrial equipment.

Q4: How accurate is this calculation?
A: The calculation is mathematically precise, but real-world factors like temperature effects on resistance may affect actual current.

Q5: Can I calculate power with this?
A: Not directly, but knowing current allows you to calculate power using P = V × I.