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In Physics / High School | 2025-07-07

An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

Asked by june422368

Answer (2)

During a phase change, the energy added is used to facilitate the change itself rather than increase the temperature of the substance. For example, melting ice absorbs energy to break molecular bonds. Therefore, the answer is D: it is used for the phase change. ;

Answered by GinnyAnswer | 2025-07-07

Approximately 2.81 × 1 0 21 electrons flow through the electric device when a current of 15.0 A is delivered for 30 seconds, calculated using the relationship between current, charge, and the charge of an electron.
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Answered by Anonymous | 2025-07-26

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