An electric fan is rated at 500 W and runs for 10 minutes.How much energy is used by the fan?
Question
An electric fan is rated at 500 W and runs for 10 minutes.
How much energy is used by the fan?
Solution
Step 1: Understand the given values The power of the fan is given as 500 W (watts) and the time it runs is 10 minutes.
Step 2: Convert time to seconds We know that 1 minute = 60 seconds. So, 10 minutes = 10 * 60 = 600 seconds.
Step 3: Calculate energy The formula for energy (E) is power (P) times time (t), or E = P * t. Substituting the given values, we get E = 500 W * 600 s = 300,000 J (joules).
So, the fan uses 300,000 joules of energy.
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