Summary of Class 21 Exam 2 Information Summary of Class 21 TEST TWO Thursday Evening April 1 7:30- 9:30 pm. The Friday class immediately following is canceled because of the evening exam. What We Expect From You On The Exam 1.An understanding of the properties of conductors. 2.An understanding of capacitors. You will not need to know about the effects of dielectrics. 3.An understanding of current flow in a resistive material, e.g. how J is related to I, how E is related to J, how resistance is related to resistivity, and how to calculate it. 4.An understanding of simple circuits. For example, you should be able to set up the equations for multi-loop circuits, using Kirchhoff’s Laws. You should be able to derive and guess the solution to differential equations for RC circuits, and should understand the meaning of time constants (τ= RC). 5.A conceptual understanding of how to determine the direction of magnetic fields of moving charges or current elements using the Biot-Savart law, e.g.
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Magnetic Field, external magnetic field, PRS in-class questions, magnetic moment vector