1. What is a Watts to Voltage Calculator?

Definition: This calculator determines the voltage based on power in watts and current in amps using Ohm's Law.

Purpose: It helps electrical engineers, technicians, and hobbyists calculate voltage when power and current are known.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( V \) — Voltage (volts)
• \( P \) — Power (watts)
• \( I \) — Current (amps)

Explanation: Voltage is calculated by dividing the power by the current flowing through the circuit.

3. Importance of Voltage Calculation

Details: Proper voltage calculation ensures electrical systems operate safely and efficiently, preventing equipment damage or failure.

4. Using the Calculator

Tips: Enter the power in watts and current in amps. Both values must be greater than 0 for calculation.

5. Frequently Asked Questions (FAQ)

Q1: What is the relationship between watts, volts, and amps?
A: Watts = Volts × Amps (P = V × I). This calculator solves for volts when watts and amps are known.

Q2: Can I use this for both AC and DC circuits?
A: For DC circuits, use directly. For AC circuits, this gives RMS voltage when using RMS current and real power.

Q3: What if my current is in milliamps?
A: Convert milliamps to amps by dividing by 1000 before entering the value (e.g., 500mA = 0.5A).

Q4: Why would I need to calculate voltage from power and current?
A: This is useful when designing circuits, troubleshooting electrical systems, or when you can measure power and current but not voltage directly.

Q5: Does this account for power factor in AC circuits?
A: No, this assumes unity power factor. For AC circuits with reactive power, additional calculations would be needed.