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Question
State the differences between electric power and electrical energy.
Distinguish Between
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Solution
| Sr. No. | Electric Power | Electrical Energy |
| 1. | Electric power is the rate at which electrical energy is consumed or converted. | Electrical energy is the total electrical work done or energy consumed by an appliance. |
| 2. | It is represented by P. | It is represented by E or W. |
| 3. | The SI unit is the watt (W). | The SI unit is the joule (J); the commercial unit is the kilowatt-hour (kWh). |
| 4. | It depends on the voltage and current in the circuit. | It depends on the power consumed and the time for which the appliance operates. |
| 5. | Formula: P = VI (also P = I2R or P = `V^2/R`) | Formula: E = Pt |
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