1. What is Power Consumption?

Power consumption refers to the amount of electrical energy used by a device or system over a specific period of time. It is typically measured in watt-hours (Wh) or kilowatt-hours (kWh) and represents the total energy consumed.

2. How Does the Calculator Work?

The calculator uses the power consumption formula:

Where:

• \( V \) — Voltage in volts (V)
• \( I \) — Current in amperes (A)
• \( Time \) — Time in hours (h)

Explanation: This formula calculates the total energy consumption by multiplying voltage, current, and time. The result is expressed in watt-hours (Wh).

3. Importance of Power Consumption Calculation

Details: Calculating power consumption is essential for energy management, cost estimation, electrical system design, and environmental impact assessment. It helps in optimizing energy usage and reducing electricity bills.

4. Using the Calculator

Tips: Enter voltage in volts, current in amperes, and time in hours. All values must be positive numbers. The calculator will provide the power consumption in watt-hours (Wh).

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between power and energy?
A: Power is the rate of energy consumption (watts), while energy is the total consumption over time (watt-hours).

Q2: How do I convert watt-hours to kilowatt-hours?
A: Divide the watt-hour value by 1000 to get kilowatt-hours (kWh).

Q3: Can this calculator be used for AC circuits?
A: This calculator assumes DC circuits or AC circuits with unity power factor. For AC circuits with reactive power, additional factors need consideration.

Q4: What is a typical power consumption for household appliances?
A: It varies widely - LED bulbs: 5-15W, refrigerators: 100-400W, air conditioners: 1000-5000W.

Q5: How accurate is this calculation for real-world applications?
A: This provides theoretical calculation. Actual consumption may vary due to efficiency losses, power factor, and device operating conditions.