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Unformatted text preview: Physics 122 Spring 2009 Document #16: Homework Assignment #06 page 1 of 9 PHYS 122: Homework Assignment #06 February 23, 2009 This homework due in Box outside of Rock 207: 5:00 PM Sharp, Monday, March 2, 2009 Announcements: The Second Hour Exam is scheduled for Friday, March 6th, 9:30 AM in Strosacker. You may bring up to two pages (front and back) of handwritten notes and an inexpensive calcu lator (that you will almost certainly not need). Physics 122 Spring 2009 Document #16: Homework Assignment #06 page 2 of 9 Problem 1: Three capacitors are connected to a battery of unknown voltage as shown in the circuit diagram above. The voltage drop across capacitor C 1 is V 1 = 11 . volts. a) What is the steadystate current through the battery? b) What is the effective capacitance of the three capacitors? c) What is the voltage of the battery? d) Which capacitor has the largest charge on it and what is the value of that charge? e) How much work was done by the battery to charge up all three capacitors? Physics 122 Spring 2009 Document #16: Homework Assignment #06 page 3 of 9 Problem 2: Again from a previous exam: ? 1A 10 8 2 16V A circuit is put together as shown and includes an ideal battery. However the battery has an unknown voltage. Suppose in this configuration you are able to measure that that current through the voltage source on the right is 1 Amp. Can you determine the unknown battery voltage? Explain your work. Physics 122 Spring 2009 Document #16: Homework Assignment #06...
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