A washing machine in a home has a power of 4,500 watts and runs on a 220-volt household circuit. a. What is the current through the washing machine? b. What is the resistance of the washing machine? c. How many kilowatt-hours of electricity are used by the washing machine if it is used for 5 hours in one week? d. How much does it cost to run the washing machine for one year if it is used for 5 hours each week at a cost of ₱6/kWh?
Added by Eric C.
Step 1
We need to find the current (I). Rearranging the formula to solve for I, we get: I = P / V Plugging in the given values: I = 4500 / 220 I = 20.45 A So, the current through the washing machine is: $\boxed{20.45 \text{ A}}$ b. Show more…
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