Physics 2213
Homework #10
Spring 2009
Read:
Chap. 30  intro., sections 30.13 (thru bottom of p. 1038 + Ex. 30.5 on p. 1040), 30.4
Chap. 31  section 31.6 (thru bottom of p. 1081)
Learning Goals:
(Be sure you understand where and how each goal in each assignment applies to our
homework, discussion, lecture, and lab activities.)
*
Define inductance and explain how it arises as a magnetic induction effect.
*
Distinguish between mutual inductance and selfinductance.
*
Calculate the selfinductance of a solenoid, given its geometry.
*
Explain how LR circuits work, and mathematically relate initial and final currents and
voltages to resistances and inductances.
*
Draw graphs showing how currents and voltages in LR circuits vary with time.
For extra practice:
Chap. 30:
Q's #Q30.1, 37, 1113; E's & P's #1, 7, 11, 13, 19, 21, 23, 61, 67
(not quizzed)
To be prepared for WednesdayFriday, April 810, at your 2nd weekly Discussion section:
Q30.2
[Transformer]
#30.9 & 30.10
[Inductor]
#30.60
[LR Circuit]
#30.43
[2 Solenoids]
Please add:
(c)
If instead the current in the
inner
coil were 0.500 A and
were changing at a rate of 37.5 A/s, what would be the
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 Spring '07
 PERELSTEIN,M
 Magnetism, Work, Heat, Magnetic Field, Solenoid, Inductor, Faraday's law of induction, Compact Muon Solenoid

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