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 current flowing through a circuit is equal to the voltage divided by the resistance.

3. Importance of Current Calculation

Details: Calculating current is fundamental in electrical engineering and electronics for designing circuits, selecting appropriate components, and ensuring safety.

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 are the units for current?
A: Current is measured in amperes (A), commonly called "amps".

Q2: Can I use this for AC circuits?
A: This simple form applies to DC circuits. For AC, you need to consider impedance and phase angles.

Q3: What if my resistance is zero?
A: Zero resistance would theoretically result in infinite current (short circuit), which isn't physically possible.

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

Q5: What's a typical current for household devices?
A: Most household devices draw between 0.5A to 15A, with larger appliances drawing more current.