👉 Rheostatic is a type of electronic circuit that uses resistance to control current flow. It's often used in circuits where voltage is applied to a resistor, and the resistance value changes according to the current flowing through it. This allows for precise control over the amount of current that can be passed through a circuit without causing excessive current or even damage to the circuit itself. The term "rheostatic" comes from the Greek word "rhêstos," which means "rigidness