184_notes:examples:week8_cap_parallel

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184_notes:examples:week8_cap_parallel [2017/10/11 18:06] – [Solution] tallpaul184_notes:examples:week8_cap_parallel [2017/10/11 18:22] – [Connecting Already-Charged Capacitors] tallpaul
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 Suppose you have the following setup of already-charged capacitors. The positive plates are all on the top half of the circuit. Capacitors are labeled 1 through 3 for convenience of reference, and the sign of the charge on the plates is indicated. You know that $Q_1 = Q_2 = Q_3 = 1 \text{ mC}$, and $\Delta V_1 = \Delta V_2 = \Delta V_3 = 20 \text{ V}$. What is the equivalent capacitance (if the switches are closed) from Node A to Node B? What happens after the switches are closed? What if Capacitor 2 were flipped? Suppose you have the following setup of already-charged capacitors. The positive plates are all on the top half of the circuit. Capacitors are labeled 1 through 3 for convenience of reference, and the sign of the charge on the plates is indicated. You know that $Q_1 = Q_2 = Q_3 = 1 \text{ mC}$, and $\Delta V_1 = \Delta V_2 = \Delta V_3 = 20 \text{ V}$. What is the equivalent capacitance (if the switches are closed) from Node A to Node B? What happens after the switches are closed? What if Capacitor 2 were flipped?
  
-{{ 184_notes:8_cap_parallel.png?300 |Circuit with Capacitors in Parallel}}+{{ 184_notes:8_cap_parallel.png?500 |Circuit with Capacitors in Parallel}}
  
 ===Facts=== ===Facts===
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   * We represent the situation with diagram given above. The flipped situation is below.   * We represent the situation with diagram given above. The flipped situation is below.
  
-{{ 184_notes:8_cap_parallel_flipped.png?300 |Circuit with Capacitors in Parallel}}+{{ 184_notes:8_cap_parallel_flipped.png?500 |Circuit with Capacitors in Parallel}}
 ====Solution==== ====Solution====
 All the charges and potential differences across the capacitors are the same, so they should have the same capacitance: All the charges and potential differences across the capacitors are the same, so they should have the same capacitance:
  • 184_notes/examples/week8_cap_parallel.txt
  • Last modified: 2018/06/26 14:45
  • by curdemma