Need help solving this Consider three situations: Close switch 2 while switch 1

Question

Need help solving this

Consider three situations: Close switch 2 while switch 1 remains open Close switch 1 while switch 2 remains open Close both switches simultaneously. Consider the initial current Io immediately after a switch is closed. Now rank the three situations in order of decreasing magnitude of initial current Io immediately after the switches close. Indicate whether any are equal. [Note: you don't have to calculate the actual current in order to answer this question.] Z > Y > X Y>Z>X X = Y = Z Z> X = Y X = Y>Z Rank the three situations in order of decreasing time required to charge up the group of capacitors to 50% of their final charge. Indicate whether any are equal. [Note: you don't have to calculate the actual time or charge in order to answer this question.] X > Y > Z leftarrow [i.e., this would mean that X takes the longest to charge up] X > Z > Y X = Y > Z Z > X = Y Z>X> Y Let R = 4.0 Ohm, and all three capacitors have C = 3.0 mu F. A long time after BOTH switches are closed, what is the voltage across capacitor C2? 3.0 V 4.0 Y 8.0 V 9.0V 12.0 V

Explanation / Answer

a) D (as capacitance increases c1+c2 thus time constant decreases thus faster growth of current )

b) C
c) C capacitance = c1+c2 thus more voltage drop across it

Related Questions

Navigate

• Browse (All)
• Browse N
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.