An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
Answer (2)
The incorrect statement is B, as it suggests that adolescents need more calories despite being inactive, which is misleading. Infants, adults, and children following dietary guidelines are correctly represented in statements A, C, and D. This highlights the importance of accurate dietary needs based on activity levels. ;
Approximately 2.81 × 1 0 21 electrons flow through the electric device delivering a current of 15.0 A for 30 seconds. This is calculated by first determining the total charge in coulombs using the formula Q = I × t and then dividing by the charge of a single electron. Thus, a significant number of electrons pass through when these conditions are met.
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