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Physics, 10.10.2019 02:50 vickydaiberg

When electrical energy is converted into thermal energy, which of the following must be true?

only the amount of electrical energy changes.
only the amount of thermal energy changes.
the total amount of thermal energy plus electrical energy changes.
the total amount of thermal energy plus electrical energy doesn't change.

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When electrical energy is converted into thermal energy, which of the following must be true?
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