Final answer:
Both students have performed incorrect calculations regarding the flow of charge in the circuit. The correct calculation can be determined by considering the charge of one electron and converting the given units of time to seconds.
Step-by-step explanation:
Both students have performed incorrect calculations regarding the flow of charge in the circuit. Let's evaluate each student's calculation:
First student: 300 C of charge flows in 1 minute.
Second student: 3.125 × 10¹⁹ electrons flow per second.
To determine the correct calculation, we consider that one electron has a charge of -1.60 × 10⁻¹⁹ C. Therefore, the number of electrons flowing in the circuit can be calculated using the formula:
Number of electrons = Total charge / Charge of one electron.
For the first student's calculation: Number of electrons = 300 C / (-1.60 × 10⁻¹⁹ C). The charge assigned to the electron should be positive. Also, the time given is in seconds, so we need to convert one minute (60 seconds) to seconds.
For the second student's calculation: 3.125 × 10¹⁹ electrons per second.
Therefore, the correct calculation is the second student's, as they provide the number of electrons flowing per second.