If an electric bulb has a rating of 200 watts and operates at 220 volts, and it is used for 5 hours daily for 10 days, calculate the cost of using the bulb at 40 paise per kWh.
Added by Thomas M.
Step 1
First, we need to find the power consumption of the bulb in kilowatts (kW). To do this, we can divide the power rating in watts by 1000. Power consumption = \(\frac{200\text{ watts}}{1000} = 0.2\text{ kW}\) Show more…
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