Electric Power
Electric power is the rate at which electrical energy is used or converted in a circuit.
Practice This ConceptMain explanation
Teacher explanation
Power tells how fast an appliance consumes electrical energy. A device with higher power uses energy more quickly. This is why wattage matters on bulbs, heaters, and other appliances.
Example
A 60 W bulb uses electrical energy faster than a 40 W bulb.
Simple analogy
Power is how fast energy is used.
Common confusion
Students often confuse power with total energy or think a larger power value means more electricity stored.
Exam tip
Always write power in watt and use the correct relation based on the values given.
Answer writing and exam use
1-mark use
Write the exact meaning of electric power in one clean line.
2-mark use
Define electric power and add one example or condition.
3-mark use
Explain electric power, show the method or example, and mention the common mistake.
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