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What is electromagnetism?

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Related questions
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A liquid will heat when it vaporizes or boils, and the vapor will heat when it condenses.
A sequencer utilizes a __________ to initiate its operation.
A kw is _______ (1000 watts, 1200 watts. Or 10000 watts)
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What is electricity?
All heating thermostats have heat anticipator. (true or False)
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A power consuming devise is referred to as ?