phy2049e2sm09 - 77777 77777 Instructor: P. Kumar PHYSICS...

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Unformatted text preview: 77777 77777 Instructor: P. Kumar PHYSICS DEPARTMENT PHY 2049 Exam II June 17, 2009 Name (print, last first): Signature: On my honor, I have neither given nor received unauthorized aid on this examination. YOUR TEST NUMBER IS THE 5-DIGIT NUMBER AT THE TOP OF EACH PAGE. DIRECTIONS (1) Code your test number on your answer sheet (use 7680 for the 5-digit number) . Code your name on your answer sheet. Darken circles completely (errors can occur if too light) . Code your student number on your answer sheet. (2) Blacken the circle of your intended answer completely, using a number 2 pencil . Do not make any stray marks or the answer sheet may not read properly. (3) The answers are rounded off. Choose the closest to exact. There is no penalty for guessing. Table of constants k = 1 4 e = 1 . 6 10- 19 C m e = 9 . 11 10- 31 kg 1. A circuit is drawn with four resistors of 4 Ohms and one resistor of 2 Ohm. An ideal 12V battery is connected to the circuit as shown. Two of the resistors are labeled A and B. What is the current through the resistor labeled B? (1) 2A (2) 6A (3) 3A (4) 1.33A (5) 4A 2. In the figure in the problem above, what is the power dissipated in the resistor marked A?...
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phy2049e2sm09 - 77777 77777 Instructor: P. Kumar PHYSICS...

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