An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
Answer (2)
Kettlewell's survival data support his hypothesis that bird predation influenced the increase of the dark carbonaria peppered moth in polluted areas. The experiments demonstrated that dark moths had better camouflage and higher survival rates in industrialized environments. Thus, the evidence suggests that bird predation played a significant role in the observed population changes. ;
The electric device delivering a current of 15.0 A for 30 seconds allows approximately 2.81 x 10^21 electrons to flow through it. This is calculated using the relationship between current, charge, and time, and the charge of an individual electron. The total charge is found to be 450 C, leading to the calculation of the number of electrons.
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