1. What is Current Calculation with Two Voltages?

This calculator determines the current in a series circuit with two voltage sources when the total power is known. It's useful for analyzing electrical circuits with multiple voltage sources in series.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( I \) — Current in amperes (A)
• \( P \) — Power in watts (W)
• \( V1 \) — First voltage source in volts (V)
• \( V2 \) — Second voltage source in volts (V)

Explanation: The formula calculates current by dividing the total power by the sum of the two voltages in series.

3. Importance of Current Calculation

Details: Accurate current calculation is crucial for circuit design, component selection, and ensuring electrical safety in systems with multiple voltage sources.

4. Using the Calculator

Tips: Enter power in watts, both voltages in volts. All values must be positive numbers. The sum of voltages must be greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: Can this be used for parallel voltage sources?
A: No, this formula is specifically for series connections. Parallel connections require different calculations.

Q2: What if one voltage is negative?
A: Negative voltages can be entered if they represent opposing voltage sources, but the sum must still be positive for meaningful results.

Q3: How accurate is this calculation?
A: The calculation is theoretically accurate for ideal voltage sources in series. Real-world factors like internal resistance may affect actual current.

Q4: Can I use this for AC circuits?
A: Only if all values are RMS values and the voltages are in phase. For complex AC analysis, additional factors must be considered.

Q5: What units should I use?
A: Consistent units are required - watts for power, volts for voltage, which will give amperes for current.