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Unformatted text preview: SignatureJ(Use Fig. 2 for all sketches) . (33 points) Directions: There,are three problems with multiple pans. Show all work on the eKampaper. Do not write on the - back of the paper. Be sure to label all vectors and graphs with correct units as appropriate. The value of each problem is labeled to the right of each problem number. Show the coordinate system when useful. Use brief explanations when asked , show all of your wor!;, keep units in all the steps of the calculation. Complete Problems. Physics 2114 Spring 2007 Midterm Exam 3 Dr.@ Page3 Problem 1 (See Fig. 1) (32points) Fi!?,JI~1 shows a circuit with three resir" ll"S and an alternating voltage source. a. Calculate the circuit's equivalent resistance reducing it to a single-resistance circuit. b. Calculate the ~ak current supplied by the emf. c. Calculate the peak voltage across the 200 (2 resistor. d. If the frequency is increased from 200 Hz to 10,000Hz (a very high frequency), the instantaneous current iR through the circuit ",ill lead the instantaneous voltage by...
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- Spring '08