2010 Midterm - Physics 171.102 Midterm Exam 2 Answer all...

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Physics 171.102 Midterm Exam 2 March 26, 2010 Answer all four problems. Be sure that you pace yourself so that you have enough time to work on each problem. Note that the problems do not have equal weight. Make sure that your answers are clearly marked, for example by drawing a box around them. In all cases, do not simply write down an answer but show your work or explain your solution. Partial credit will be given, so be sure to show your work as clearly as possible. Only work written in your blue book will be graded. Honor Pledge. Before turning in your exam, please write out and sign & date the following pledge: “I have completed this exam without unauthorized assistance from any person, materials, or device.” Good luck!
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List of potentially useful formulae Capacitance: C = Q/V Potential Energy in Capacitor: U = CV 2 /2 Capacitance of a parallel-plate capacitor: C = ! 0 A/d Energy Density of Electric Field: u = ! 0 E 2 /2 Current: i = r J " d r A # Ohm ! s Law: r J = " r E = r E / # (i.e., V = IR ) Resistance: R = L/ " A Power: P = IV Equivalent resistance of resistors in series: R eq = R i " Equivalent resistance of resistors in parallel: R eq " 1 = R i " 1 # Equivalent capacitance of capacitors in series: C eq " 1 = C i " 1 # Equivalent capacitance of capacitors in parallel: C eq = C i " Biot-Savart Law: d r B =
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This note was uploaded on 04/08/2012 for the course PHYSICS 101 taught by Professor Bennet during the Fall '08 term at Johns Hopkins.

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2010 Midterm - Physics 171.102 Midterm Exam 2 Answer all...

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