**PHY3054 - Exam 1 - Fall 1994 - Selman Hershfield
**

**Answers**
- Answer = (2) 1.8x10
^{-4} N
- Answer = (1) 30 degrees
- Answer = (4) 8.6x10
^{-9} N
- Answer = (2) 2.2x10
^{6} m/s
- Answer = (3) The overall charge on the electroscope is zero, and the foil is negatively charged.
- Answer = (3) -0.5 micro Coulomb
- Answer = (1) Fig. 3.1
- Answer = (5) 14 cm
- Answer = (1) -4.0 m
- Answer = (3) 0 C
- Answer = (1) 2.5x10
^{5} m/s
- Answer = (3) 0.5 J
- Answer = (4) 0.36 J
- Answer = (2) V is zero and E is not zero.
- Answer = (1) Positively charge the right horizontal deflection plate and positively charge the upper vertical deflection plate.
- Answer = (2) 0.75 micro Coulomb
- Answer = (4) 1 V
- Answer = (2) The energy will go down by a factor of 2.
- Answer = (2) 2.8 micro Farad
- Answer = (1) Figs. 10.1 and 10.2 are the same and Fig. 10.3 is different.