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היכנס

Physics for IGCSE & O level - Electricity (Section 5 - No. 20)

If a lightbulb uses 100J of energy every second, what is its power?
100 Watts
100 Amperes
100 Volts
100 Ohms

הֶסבֵּר

Power is energy per second, so 100J/s = 100W.

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