PH 102 Midterm: ph102_Sum10_Exam_2
Document Summary
Summer ii 2010: answer six of the eight questions below. All problems have equal weight: using the tick boxes, clearly mark your which problems you have chosen, you are allowed 2 sides of a standard 8. 5x11 in piece of paper and a calculator. Find the current in the 6 resistor. Four very long wires are directed perpendicular to the plane of the gure below. The points where these wires cross the plane of the drawing form a square of edge length 0. 45 m, and each wire carries a current of magnitude 2. 5 a. Find the magnetic eld at the center of the square (i. e. , at the origin). Be careful about your directions before deciding things cancel . y current into plane. I current out of plane x current out of plane. If the circular paths followed by the electron and proton have the same radii, what is the ratio of their speeds? y proton electron x.
