1. Chapter 5 Direct Currents in Electric Circuits Conduction of Electricity Ohm ’ s Law Non-linear Resistors Resistors Connected Kirchhoff ’ s Lawss Substitution Theorem Mesh Current

2. Voltage and Current Sources Thevenin Theorem Transient in RC Circuits If the electric field E is maintained in conductor by an external source, say, a battery, then charges drift in the field and there is an electric current.

15. Sometimes it is convenient to introduce a quantity called conductance, which is defined as G = 1/R Then for connection in parallel, one has G = G 1 + G 2 + G 3.