Discussion of the need to use resistors to limit the current in certain circuits.

Circuits Current Resistance

Broad-brush introduction to current, voltage, and resistance as well as how these are related through Ohm's Law. Also the concepts of linear and non-linear behavior are introduced. IV relationship are discussed where a diode is used an an example of a non-linear devic...

Current Voltage Resistance

A transimpedance amplifier is a circuit that will produce a scaled output voltage that is proportional to a supplied input current (this type of circuit is often considered a current controlled voltage source).

Current Voltage Amplifier