A resistor is not considered a dependent source; it is a passive element characterized by Ohm's law. While it can approximate a current source when used with a voltage source, it does not generate current on its own. The discussion highlights that a resistor can translate voltage to current or vice versa, but it does not act as a source independently. Current sources are typically modeled with high output resistance, which can be approximated using large resistors and high voltage supplies. Ultimately, a resistor's role is to facilitate current flow rather than to serve as a source of voltage or current.
