1. What is Electrical Load?

Electrical load refers to the amount of power consumed by an electrical circuit or device, measured in watts. It represents the energy conversion rate from electrical to other forms (heat, light, motion, etc.).

2. How Does the Calculator Work?

The calculator uses the basic power equation:

Where:

• \( V \) — Voltage (volts)
• \( I \) — Current (amps)

Explanation: The equation calculates power in watts by multiplying voltage and current.

3. Importance of Load Calculation

Details: Accurate load calculation is crucial for circuit design, selecting proper wire sizes, choosing circuit protection devices, and ensuring electrical system safety.

4. Using the Calculator

Tips: Enter voltage in volts and current in amps. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between real power and apparent power?
A: This calculator gives real power (watts). Apparent power (VA) includes power factor considerations.

Q2: How does this relate to energy consumption?
A: Energy (watt-hours) = Power (watts) × Time (hours). This calculator gives instantaneous power.

Q3: Can I use this for AC circuits?
A: For purely resistive AC loads, yes. For reactive loads, power factor must be considered.

Q4: What's a typical household load?
A: Lighting: 15-200W, TV: 50-400W, Refrigerator: 100-800W, AC: 1000-5000W.

Q5: How do I calculate load for multiple devices?
A: Calculate each device's load separately, then sum them for total load.