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PHYS 142 _002_S08_PRACTICE_SECOND_MIDTERM_031908

# PHYS 142 _002_S08_PRACTICE_SECOND_MIDTERM_031908 - Second...

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Second Midterm PRACTICE Test Physics 142 002 E. P. Day SECOND Midterm Test E208 MSC 6PM Wednesday, March 19, 2008 There are 22 multiple choice questions each worth 5 points for a total of 90 points. There is one Open question (in a separate attachment) worth 10 points. 1.( 18_5.) The internal resistances of an ideal voltmeter and an ideal ammeter are respectively ( ideal meaning the behavior of the system is not changed when using the meter): a. zero and zero. b. infinite and infinite. c. zero and infinite. d. infinite and zero. 2.( 18_29) 29. Which two resistors are in parallel with each other? a. R and R 4 b. R 2 and R 3 c. R 2 and R 4 d. R and R 1 R 2 R R 4 R 3 R 1 3. (18_14) 14. Which resistor is in series with resistor R ? a. R 1 b. R 2 c. R 3 d. R 4 R 2 R R 4 R 3 R 1 4. (19_45.) In a mass spectrometer, an ion will have a smaller radius for its circular path if: a. its speed is greater. b. its mass is greater. Page 1

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