Physics 20484 - Homework #6

Due Monday, April 10 at 9:00 am.


Solve the following problems on your own paper. Please:

Chapter 31

#14
Answer as a pure number, a multiple of omega.

#20
From zero to the first maximum is one quarter of a period.

#26
This is similar to sample problem 31-3.

#28
Use equation 31-39 to find the capacitive reactance.

#36
According to the graph, the resonant frequency is 25000 rad/sec.

#46
For (e), you can answer by calculating the new impedance. For (d) and (f), you can probably answer without doing any new calculations.

#60
Answer with 3 SF.

#94
Solve for the impedance first, then finding the inductive reactance should be easy.

Suggested problems from chapter 31:
9, 10, 11, 16, 17, 18, 21, 24, 25, 29, 30, 31, 35, 37, 38, 39, 40, 41, 42, 43, 45, 50, 51, 52, 53, 54, 59, 61, 62, 63, 69, 72, 76, 77, 78, 85, 90, 95


Chapter 32

#8
Use equations 32-16 and 32-17 here, then use equation 32-14 to find the displacement current.

#10
You can assume there is no current here, so the 2nd term in equation 32-5 is zero.

#12
It really helps if you do problem 13 first. You'll use equation 25-9 here. Ultimately, you want to solve for dV/dt.

#14
Use equations 32-14 and 32-17. Keep in mind that "A" is the plate area, not the loop area.

#20
First, solve for the current using the basic RC circuit techniques. Next, read again the discussion in section 32-4 leading up to equation 32-15. Finally, solve using equation 32-16.

#24
Use equations 32-16 and 32-17 for this one.

Suggested problems for chapter 32:
1, 2, 3, 9, 11, 13, 16, 17, 19, 21, 22, 23, 25, 26