This preview shows pages 1–3. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: Energy Try it! Example: Calculate current through each resistor. R 1 = 10 , R 2 = 20 , R 3 = 30 , V b =44 V Complex circuits For HW: very tricky when finding the power or current for a given resistor R 1 R 2 R 3 V b 18.5 RC Circuits • C circuits – Charging is done "instantly"; q = CV – Not good; can ruin the battery – Add some resistance to slow it down • RC Circuits Example: (a) How long does it take the charge on the capacitor to drop to one-fourth of its original value (in multiples of )? (b) If V= 12V, R = 2 and C = 3.5 F, find the initial charge on the capacitor and the time it takes to discharge? 3 18.6 Household circuits and 18.7 electrical safety...
View Full Document