**PHY3054 - Exam 3 - Fall 1995 - Selman Hershfield
**

**Answers**
- Answer = (5) Not enough information is given.
- Answer = (4) Fig. 1.4 is the current and Fig. 1.1 is the force.
- Answer = (1) 0.6 mA
- Answer = (3) Counterclockwise in Fig. 2.1 and counterclockwise in Fig. 2.2.
- Answer = (3) 19 mA
- Answer = (4) The speed of light is at most the speed of light in a vacuum.
- Answer = (3) 1 x 10
^{26} Watts
- Answer = (4) 0.05 N
- Answer = (1) Done correctly.
- Answer = (4) 90 degrees and 135 degrees
- Answer = (1) 0.1 I
- Answer = (5) 67 degrees
- Answer = (3) Fig. 5.3
- Answer = (2) The image is real and inverted.
- Answer = (3) Fig. 6.3
- Answer = (4) Figs. 7.1 and 7.3
- Answer = (2) 0.6 m
- Answer = (1) 0.4 m
- Answer = (4) 2 m
- Answer = (4) 2.0 m