9fd99e4b_mateur_Extra_2002___Hamboozler__Question
[Name] E5B11 [Study] Start [Question] 
How long does it take for an initial charge of 800 V DC to decrease to 294 V DC in a 450-microfarad capacitor when a 1-megohm resistor is connected across it?
Questions in US Amateur Radio - Amateur Extra 2002 - Hamboozler
Question