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In Physics / College | 2025-07-08

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

Asked by disappearkaty

Answer (2)

The correct answer is D, as the direction of the force and the direction of acceleration must be the same. According to Newton's second law, force causes acceleration in the same direction. Options A and B contradict this principle, while option C misrepresents the relationship between mass and acceleration. ;

Answered by GinnyAnswer | 2025-07-08

To determine how many electrons flow through an electric device delivering a current of 15.0 A for 30 seconds, we calculate the total charge using the formula Q = I ⋅ t , which results in 450 coulombs. Dividing this charge by the charge of a single electron (approximately 1.6 × 1 0 − 19 C ), we find that approximately 2.81 × 1 0 21 electrons flow through it.
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Answered by Anonymous | 2025-07-26

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