# Homework
#5.
Linearity, Superposition, & Source Transformation

- Read Sections 4.1 to 4.4 of Alexander & Sadiku's
*Fundamentals
of Circuit Analysis* (6th
edition).

- Make sure you understand the answers to Review Questions 4.1, 4.3, and 4.8 on page 159. Quiz
questions will be similar to these Review Questions or Review Questions from earlier
chapters.

- Turn in solutions to Problems 4.1,
4.6, 4.8*, 4.13*, 4.20**, 4.25** and 4.26** on pages 160 to 163.
- *For the superposition problems (4.8 and 4.13),
**your
solutions must include drawings showing each source acting by
itself**, along
with your calculations. *Hint
for 4.8: *Your task
will be easier if you replace the series 5-Ω and
4-Ω resistors
by a single equivalent 9-Ω resistor. You can ignore the sentence
telling you to check your answer with PSpice or Multisim.
- **For the source-transformation problems (4.20, 4.25, and
4.26),
**your solutions
must include drawings showing the transformed circuits**, along
with your calculations. *Hint
for 4.20: *This circuit will become a simple
parallel circuit if you transform the three voltage sources into current sources. Then you can combine parallel resistors into a single resistor and parallel current sources into a single current source. Then, finally, transform that current source into a voltage source. *Hint
for 4.25 and 4.26: *Each of these circuits will become a simple
series circuit if you transform all current sources into voltage sources. You can
ignore the sentence telling you to check your answer with PSpice
or Multisim.