Active Power Calculator

How to Use the Active Power Calculator

1. Enter the voltage (V) in volts. This is the electrical potential difference in the circuit.
2. Enter the current (I) in amperes. This is the rate of flow of electric charge in the circuit.
3. Enter the power factor (PF). This is a dimensionless number between 0 and 1 that represents the ratio of real power (active power) to apparent power in an AC electrical circuit.
4. Click the "Calculate" button to compute the active power.
5. The result will be displayed in watts (W).

Working Principle

Active power (P) is the power actually consumed by the load in an electrical circuit. It is calculated using the formula P = V × I × PF, where:

• V is the voltage in volts
• I is the current in amperes
• PF is the power factor

The power factor accounts for the phase difference between the voltage and current waveforms in an AC circuit. A power factor of 1 indicates that the voltage and current are in phase, while a power factor less than 1 indicates that there is a phase difference.

Example

Suppose you have a circuit with a voltage of 220 volts, a current of 10 amperes, and a power factor of 0.8. The active power can be calculated as follows:

P = 220 V × 10 A × 0.8 = 1760 W

This means that the load is consuming 1760 watts of active power.