All questions
AP Physics C: E&M
11.5 Compound Direct Current Circuits
11.4 Electric Power
11.3 Resistance, Resistivity, and Ohm’s Law
IntermediateMCQMathematicalProportional Analysis22.8k
Circuits containing three resistors in series (a) and in parallel (b).
Circuits containing three resistors in series (a) and in parallel (b).
Three lightbulbs with individual resistances \(R\), \(2R\), and \(3R\) are connected in series to an ideal power supply that maintains a constant potential difference \(V_0\). The total rate of energy dissipation in this series circuit is \(P_{\text{series}}\). The three lightbulbs are then disconnected and reconnected in parallel across the same power supply, where the total rate of energy dissipation is \(P_{\text{parallel}}\). What is the ratio \(\dfrac{P_{\text{parallel}}}{P_{\text{series}}}\)?

Log In to Continue

Accounts are free! Log in to try this question, see explanations, save progress, and more!

Tools for a 5