Solve the following problems on your own paper. Please:

• Show all work.
• Put a box around your final answer to each problem.
• Be sure proper significant figures (SF) used for all answers.
• Separate all solutions with a horizontal line on your paper.
• A random selection of five problems will be graded for 20 points each.
• Solutions for suggested odd problems can be seen by following links.
• Solutions for assigned problems will be linked from this page after the due date.

Chapter 27

#4

Use Power = V*V/R for part (a), then P = I*I*R for part (b).

#6

Use the loop rule to find the current, then you can find the voltage drop along either path connecting points P and Q.

#10

Use chapter 26 methods to find the resistance of the wire. Use P = I*I*R to find (c) and (d).

#16

Set up an equation representing each situation, then solve the 2 equations for your 2 unknowns.

#20

This one is similar to sample problem 27-3.

#30

There is no need to use the loop rule here. Just use methods similar to those we used for capacitor circuits.

#34

Use the cases where R(3) = 0 and infinity. For each of these cases, you can write down one equation representing the circuit, then you solve for the 2 unknowns.

#44

Answer with 2 SF. If it helps, you may assign a value of, say, 3 for the initial charge.

#48

Remember that the voltage drop across the resistor is IR. Set this equal to the voltage drop across the capacitor (and also use your expression for I in an RC circuit).

Suggested problems from chapter 25:

1, 2, 3, 5, 7, 8, 9, 11, 15, 17, 18, 19, 21, 22, 23, 24, 26, 27, 31, 33, 45, 46, 47, 49, 50, 51, 52

Chapter 28

#16

Use work-energy to find the velocity of the particle after it is accelerated.

#32

Find the magnitude only.

#40

This is similar to #49, which we will do together in class.

#48

Hey, look, you're already done! That chapter wasn't so bad.

Suggested problems for chapter 26:

1, 2, 9, 11, 12, 15, 17, 18, 19, 20, 33, 34, 35, 42, 46, 47, 49, 61