What happens when the knob of a rheostat switch is turned to the right?

When the knob of a rheostat switch is turned to the right, the resistance within the circuit decreases. A rheostat operates by varying the resistance in an electrical circuit, which directly affects the current flowing through it. According to Ohm's law, when resistance decreases in a circuit and voltage remains constant, the current flow increases.

Thus, turning the knob to the right effectively allows more current to pass through the circuit, leading to an increase in current flow. This adjustment is crucial in applications where fine-tuning of electrical outputs is necessary, such as in dimming lights or controlling motor speeds, allowing for greater control over the electrical system's performance.