1. What is Ohm's Law?

Ohm's Law 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 in volts (V)
• \( I \) — Current in amperes (A), fixed at 1A in this calculator
• \( R \) — Resistance in ohms (Ω)

Explanation: The equation shows the direct relationship between voltage and resistance when current is held constant.

3. Importance of Voltage Calculation

Details: Calculating voltage is essential for circuit design, electrical safety assessments, and troubleshooting electrical systems.

4. Using the Calculator

Tips: Enter resistance in ohms (Ω). The current is fixed at 1 ampere. Resistance must be a positive value.

5. Frequently Asked Questions (FAQ)

Q1: Why is current fixed at 1 amp?
A: This calculator specifically calculates voltage for a current of 1 amp. For other currents, a different calculator would be needed.

Q2: What are typical resistance values?
A: Resistance values vary widely from milliohms in conductors to megaohms in insulators.

Q3: Does this work for AC circuits?
A: This calculator assumes DC circuits. For AC, impedance must be considered instead of pure resistance.

Q4: What if I know voltage and want to find resistance?
A: You would need to rearrange the equation to \( R = V / I \).

Q5: What are the limitations of Ohm's Law?
A: Ohm's Law applies to ohmic materials. Non-ohmic materials (like diodes) don't follow this linear relationship.