http://www.ck12.org Chapter 17. Circuits
CHAPTER
17 Circuits
Chapter Outline
17.1 Electric Current
17.2 OHM’SLAW
17.3 RESISTIVITY
17.4 RESISTORS INSERIES ANDPARALLEL
17.5 MEASURINGCURRENT ANDVOLTAGE
17.6 REFERENCES
A circuit just means a completed loop. An electrical circuit can be as simple as a few wires held in place by
hand. As long as the electricity can flow in a loop, the circuit is complete. This chapter covers electrical current,
voltage, resistors and resistivity, resistors in series and parallel, and measuring both voltage and current.