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Unformatted text preview: Problem Set 11 Solutions p. 1 of 4 MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Physics 8.02 Fall 2008 Problem Set 12 Due: Wednesday, May 7 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. Phase shifts in an RLC Circuit (10 points) Consider the circuit shown in the figure below. The circuit is driven below resonance. Which in the following pairs leads (if either)? (a) Voltage across the capacitor or voltage across the resistor (b) Voltage across the function generator or voltage measured across the inductor (c) Current or voltage across the resistor (d) Current or voltage across the function generator Problem 2: Solenoid (10 points) Consider a long solenoid of length D and radius a with N turns, placed along the z-axis (it is centered at z=0). It is hooked in series with a capacitor C , a resistor R , and a power supply that is driving the circuit on resonance. At time t = 0 the current flowing through the solenoid is a maximum, I . (a) At this moment (t = 0), calculate the magnetic field B everywhere inside the solenoid. Show your work....
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- Spring '07