An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
Answer (2)
In this situation, a current of 15.0 A flowing for 30 seconds results in a total charge of 450 coulombs. This charge corresponds to approximately 2.81 x 10^{21} electrons flowing through the device. Thus, a significant number of electrons are involved in the electric current during this period.
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The Northeast region of the United States has the greatest concentration of railroad lines, primarily due to its history of industrialization and urban density. Major cities like New York and Boston are key components of this extensive network. Other regions such as the Northwest and Southwest have much less railroad infrastructure. ;
