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Output

In this activity, students will create a fan regulator circuit that allows them to
control the speed of a fan using a potentiometer (a special dial). When the fan
is turned on, adjusting the knob will change the fan’s speed, like how we modify

the speed of a ceiling fan in our homes.

Concepts

Electricity and Motion: Students will discover how the electricity from the
battery powers the motor, causing the fan to spin. This demonstrates that

electricity can create movement in objects, such as fans and toy cars.

Adjusting Speed with a Potentiometer: The potentiometer is a special
knob that regulates how quickly or slowly the fan turns. By turning the knob,
students can control the amount of electricity flowing to the motor. More

electricity increases the fan’s speed, while less electricity decreases it.

Observations

During the Fan Regulator Circuit activity, students will notice:

The fan begins to spin once the circuit is connected.

Adjusting the potentiometer knob changes the fan’s speed.

The faster they turn the knob,
the quicker the fan spins;
turning it in the opposite

direction slows the fan down.

Home Appliances

The most direct application
is in household fans and air

conditioning units, where speed
regulation is crucial for comfort.
Students gain insight into how

we can adjust the airflow and
energy consumption in our
homes.

44 RoboGenius (V1.0)-IV