Inactive Tutor answered 02/07/22
Hi Renan C.,
If this is your first exposure to "this problem", please indicate your physical science background. These are all fairly basic problems for voltage, capacitance, and related terms. If all of the language (volts, electrons, charge, and so on) is new to you, you need a one-on-one tutor. This is not the forum to request a physical science primer lesson, sorry.
--Cheers, --Mr. d.