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Chapter 25: Capacitance

Fundamentals Of Physics
Pages: 717 - 744

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89 Questions for Chapter 25: Capacitance

  1. In Fig. 25-28, find the equivalent capacitance of the combination. Assume that C1is10.0μF,C2is5.00μF,andC3is4.00μF

    Found on Page 740
  2. When a dielectric slab is inserted between the plates of one of the two identical capacitors in Fig. 25-23, do the following properties of that capacitor increase, decrease, or remain the same: (a) capacitance, (b) charge, (c) potential difference, and (d) potential energy? (e) How about the same properties of the other capacitor?

    Found on Page 739
  3. In Fig. 25-29, find the equivalent capacitance of the combination. Assume that C1=10.0μF, C2=5.00μFandC3=4.00μF

    Found on Page 740
  4. You are to connect capacitances C1andC2, withC1>C2, to a battery, first individually, then in series, and then in parallel. Rank those arrangements according to the amount of charge stored, greatest first.

    Found on Page 739
  5. Two parallel-plate capacitors, 6.0μFeach, are connected in parallel to a 10 Vbattery. One of the capacitors is then squeezed so that its plate separation is 50.0% of its initial value. Because of the squeezing, (a) How much additional charge is transferred to the capacitors by the battery? (b) What is the increase in the total charge stored on the capacitors?

    Found on Page 740
  6. A 100 pFcapacitor is charged to a potential difference of 50 V,and the charging battery is disconnected. The capacitor is then connected in parallel with a second (initially uncharged) capacitor. If the potential difference across the first capacitor drops to 35 Vwhat is the capacitance of this second capacitor?

    Found on Page 740
  7. In Fig. 25-30, the battery has a potential difference of V = 10.0 V, and the five capacitors each have a capacitance of10.0μFWhat is the charge on (a) capacitor 1 and (b) capacitor 2?

    Found on Page 740
  8. In Fig. 25-31, a 20.0 Vbattery is connected across capacitors of capacitancesC1=C6=3.00μFandC3=C5=2.00C2=2.00C4=4.00μFWhat are (a) the equivalent capacitanceCeqof the capacitors and (b) the charge stored byCeq? What are (c)V1and (d)role="math" localid="1661748621904" q1of capacitor 1, (e)role="math" localid="1661748675055" V2and (f)q2of capacitor 2, and (g)V3and (h)q3

    Found on Page 740
  9. Plot 1 in Fig. 25-32agives the charge qthat can be stored on capacitor 1 versus the electric potential Vset up across it. The vertical scale is set byqs=16.0μCand the horizontal scale is set byVs=2.0VPlots 2 and 3 are similar plots for capacitors 2 and 3, respectively. Figure bshows a circuit with those three capacitors and abattery. What is the charge stored on capacitor 2 in that circui

    Found on Page 740
  10. In Fig. 25-29, a potential difference of V= 100.0 V is applied across a capacitor arrangement with capacitances,C1=10.0μF,C2=5.00μF, andC3=4.00μF.If capacitor 3 undergoes electrical breakdown so that it becomes equivalent to conducting wire, (a) What is the increase in the charge on capacitor 1? (b) What is the increase in the potential difference across capacitor 1?

    Found on Page 740

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