Question: An uncharged 3.70-uF capacitor is in series, through a switch, with a 4.30-Mohm resistor and a 28.8- V battery (with negligible internal resistance.) The switch is closed at t = 0 and a current of Ii immediately appears.
Part A: How long will it take for the current in the circuit to drop to 0.37Ii?
Explain how you came up the prefixes and answer please.