A practical voltage source is one which we find around us. The terminal voltage across its terminals are not constant rather it varies with output current. Internal resistance of practical voltage source has some finite value. ... Examples of voltage sources are Batteries, Generators etc.

What is a practical current source?

Definition: A practical current source is a two terminal device having some resistance connected across its terminals. Unlike ideal current source, the output current of practical source depends on the voltage of the source. The more this voltage, the lesser will be the current.

What is practical voltage source and practical current source?

The purpose of a voltage source provides current to a load rather than voltage. Ideal current sources are providing the exact same current to any resistance connected to it. Where practical current sources may vary current resistance.