Subject: Room change, Exam I grades posted From: Greg Jenkins Date: Mon, 05 Oct 2009 19:20:17 -0400 To: IamGinoP@yahoo.com, Andrew Kehlenbeck , matt_adamko@yahoo.com, kg24sep@yahoo.com, iamginop@yahoo.com, bretteisenberg@yahoo.com, blizzardwater@yahoo.com, CoursemailPhys270 -=-=-=-=-=-=-=-=-=-=-= The class will be held in the Chemistry building (attached to the physics building), room # 1402, on the following dates: Thurs, Oct. 8 UMD Distinguished Scholar-Teacher Tues., Oct. 13 Carr Lecture Tues., Oct. 20 Prange Prize Tues., Oct. 27 UMD Distinguished Scholar-Teacher Thurs., Oct. 29 Physics is Phun See the schedule on the website: http://www.physics.umd.edu/courses/Phys270/Jenkins/Schedule.html -=-=-=-=-=-=-=-=-=-=-= Your Exam I scores are posted with histogram: http://www.physics.umd.edu/courses/Phys270/Jenkins/Solutions.html The grade breaks are roughly the following: A>70 B>50 C>40 D>30 F<30 To protect your privacy, I am not simply posting your grades directly related to your university ID. In order to look up your grade, get the 'Code' number from the first letter of your last name here: . . . -=-=-=-=-=-=-=-=-=-= The exam was almost completely made up of quiz and homework problems: Problem 1 - B and E transformation between moving frames Quiz #3b, Hwk #35.5 Problem 2 - Biot-Savart law from current Arc example done in class, Hwk problem 34.46, quiz #1a and #1d Problem 3 - Solenoid - very similar to Hwk # 34.40 a) derivation in class and in book, one of the few examples of the utility of ampere's law b) RHR for direction of B-field from current c) E-field inside solenoid very similar to quiz #3a d) E-field direction application of Lenz's law (lots of homework) Problem 4 - E&M traveling wave Derived in class and in book (eq 35.24), wave direction ~ S ~ E x B, B=E/c, S is intensity, meaning of "plane wave" Problem 5 - RLC circuit - Hwk problem 36.8, and strongly related to 36.7 Problem 6 - displacement current between parallel capacitors Quiz #3d, Hwk problem 35.38 -=-=-=-=-=-=-=-=-=-= Please come speak to me if you performed what you consider to be poorly on the exam. In particular, if you have been diligently doing all the homework problems, I would very much like to speak with you.