• Learn the names, definitions, and properties of the five ideal basic circuit elements.
• Learn the difference betweeen dependent and independent sources.
• Learn the names, definitions, and properties of the four types of ideal controlled sources.
• Learn the two forms of Ohm's law, the units of resistance and conductance, and the relation between the two units.
• Learn the expressions for the power consumed by a resistance in terms of the voltage across its terminals and in terms of the current through it.
• Learn Kirchhoff's two Laws and be able to apply them to solve for the voltages and currents in simple resistive circuits.

Skills: In studying the material in this chapter, you should make certain that you develop the following skills:

• Express the values of resistors in either ohms or siemens
• Calculate the power in single two-terminal elements, including resistors, dependent sources, and independent sources.
• Sum the individual element powers to come up with the total power for an entire circuit.
• Find all the paths in a circuit which contains more than a single loop.
• Be able to determine the properties of series and parallel combinations of different types of sources.

Review Questions: Test your understanding of the material in this chapter by answering the following review questions:

1. If independent voltage and current sources are connected in parallel, can the combination be replaced by a single independent source?

2. If independent voltage and current sources are connected in series, can the combination be replaced by a single independent source?

3. If an independent voltage source and a dependent current source are connected in parallel, can the combination be replaced by a single source?

4. If a dependent voltage source and an independent current source are connected in series, can the combination be replaced by a single source?

5. A circuit contains independent voltage sources and resistors. If the values of the voltage sources are not changed, but the values of the resistors are doubled, what happens to the currents and the powers in the circuit.