PHY 2140 Exam 1 Answers

Note:  there were TWO versions of the exam. Please determine your version of the exam first. Your version of the exam can be determined by the first assigned prolem.

VERSION I.
First problem: Two identical conducting spheres are placed with their centers 0.30 m apart...

1.   b
2.   c
3.   a
4.   d
5.   c
6.   d
7.   d
8.   b
9.   b
10. c
11. a
12 (bonus).  c

VERSION II.
First problem: A wire carries a steady current of 0.2 A over a period of 20 s...

1.   c
2.   d
3.   c
4.   c
5.   d
6.   a
7.   d
8.   b
9.   d
10. a 
11. c
12 (bonus).  b

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