Problem Set 10

# Problem Set 10 - MASSACHUSETTS INSTITUTE OF TECHNOLOGY...

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PS08-1 MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Physics 8.02 Spring 2008 Problem Set 10 Due: Wednesday, April 23 at 11 am. Hand in your problem set in your section slot in the boxes outside the door of 32- 082. Make sure you clearly write your name, section, table, group (e.g. L01 Table 3 Group A) Problem 1: (10 points) Part (a) (5 points: In an LC circuit, the electric and magnetic fields are shown in the figure. At the moment depicted in the figure, the energy in the circuit is stored in 1. the electric field and is decreasing 2. the electric field and is constant 3. the magnetic field and is decreasing 4. the magnetic field and is constant 5. in both the electric and magnetic field and is constant 6. in both the electric and magnetic field and is decreasing Explain your answer.

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PS08-2 Part (b) (5 points) : In a freely oscillating LC circuit, (no driving voltage), suppose the maximum charge on the capacitor is Q max . Assume the circuit has zero resistance. a) In terms of the maximum charge on the capacitor, what value of charge is present on the capacitor when the energy in the magnetic field is three times the energy in the electric field. b) How much time has elapsed from when the capacitor is fully charged for this condition to arise? c) If the resistance is non-zero, will the natural frequency of oscillation compared to the natural frequency of the ideal LC
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Problem Set 10 - MASSACHUSETTS INSTITUTE OF TECHNOLOGY...

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