Return to PHYS 152 Past Exams & Answers
Part A
1. B
2. A, B, F
3. A
4a. evenly-spaced parallel horizontal lines pointing to
the left
4b. B
4c. A
5a. B
5b. B
5c. B
6a. A
6b. B
Part B
1a. lines spreading upward and outward, out of the N
pole
1b. C
1c. C
1d. 1.6 cm
1e. E
2a. 6.7 A
2b. start at origin, and asymptotically approach I_(a)
from below
2c. rms current = 0.70 A (reactance of inductor =
169.6 ohms; total impedance of LR circuit = 170.6 ohms)
2d. sine or cosine curve (with symmetric positive and negative
amplitudes) that completes one period every (1/60)th of a second
3a. C (using magnetic field right-hand rule)
3b. 8.2 x 10^-6 T or 0.082 G
3c. C
3d. 7.5 amps per home (total current for all homes
= 1.13 x 10^6 A)
3e. B