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.

2. How Does the Calculator Work?

The calculator uses Ohm's Law formula:

Where:

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

Explanation: The formula calculates the voltage by multiplying the current (in amperes) by the resistance (in ohms).

3. Importance of Voltage Calculation

Details: Accurate voltage calculation is crucial for circuit design, electrical safety analysis, and troubleshooting electrical systems.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: What are the units for each variable?
A: Voltage is measured in volts (V), current in amperes (A), and resistance in ohms (Ω).

Q2: Can this calculator be used for AC circuits?
A: This calculator uses the basic DC version of Ohm's Law. For AC circuits, impedance must be considered instead of pure resistance.

Q3: What is a typical voltage range?
A: Voltage can range from millivolts (mV) in small electronic circuits to kilovolts (kV) in power transmission systems.

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

Q5: How accurate is this calculation?
A: The calculation is mathematically precise for ideal conditions. Real-world applications may require considering temperature effects and other factors.