alleryStart learning →Lightbulbs are commonly rated in which unit?
AWatt units
BAmpere units
CCoulomb units
DOhm units
Answer & Solution
Correct answer: A. Watt units
1. Everyday appliances are labelled by how fast they use energy.
2. Power is measured in joules per second, which are watts.
3. We think of lightbulbs in terms of their power ratings in watts.
4. Fuses and circuit breakers are rated in amperes instead.
_Source: OpenStax College Physics for AP Courses 2e (CC BY 4.0), Ch 20 'Electric Current, Resistance, and Ohm's Law', sections 20.1-20.7_
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