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Is 5.5 power equal to 500W
I don't know what unit is following your 5.5, I think it should be 5.5kw/hour
KW / hour is the unit of power, W is the unit of work, two can't wait!
5.5kw/h means that it costs 5.5kW of electricity to run for one hour!
What is the current passing through the filament when the bulb marked with "220 V 40 W" normally lights up
40/220=2/11=0.18(A)
What is the power of a 220 V 40 W bulb in normal operation? What is the current through the filament? What is the work done by the current per minute?
40W
40W/220V=0.1818A
40wx60s = 2400ws (watt second) = 2400j (joule)
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