An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
Answer (2)
Individual characteristics uniquely identify specific sources, while class characteristics are shared among groups. Therefore, the statement in the question is false. Understanding this distinction is crucial in forensic science. ;
A device with a current of 15.0 A for 30 seconds will allow approximately 2.81 × 1 0 21 electrons to flow through it. This is calculated by first finding the total charge (Q) using Q = I × t and then converting this charge into the number of electrons using the charge of a single electron. Thus, knowing the current and time allows us to determine the number of electrons moving through the device.
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