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    Output

                      When the battery is connected, the motor will spin, causing the attached
                      fan to turn. The spinning fan will move air around, just like a regular fan.

                      The speed of the fan depends on how much power is given by the battery.

                      Concept

                         • Motor and Power: The battery provides power to the motor, which

                         turns electrical energy into movement (spinning the fan).

                         • Fan and Airflow: The moving fan blades create airflow, making it cooler
                         around you. This shows how electrical energy can be turned into moving

                         energy to create wind.

                      Observation

                      When  you connect the  battery,  you’ll  see  that  the  fan  starts  spinning

                      quickly. You can feel the air moving when you put your hand near the fan.
                      When you disconnect the battery, the fan stops moving, showing that the

                      motor needs power to work.

                      Application

                      This activity is just like a portable handheld fan that people

                      use on hot days to keep cool. These small fans can be carried
                      around  and  are  powered  by  batteries or  USB chargers  to

                      create a cool breeze anytime, anywhere.

                      Doorbell Circuits

                      A doorbell circuit is a simple electrical circuit that makes a sound when
                      you press a button, letting people know someone is at the door.

                      When you press the button, it allows electricity to flow through the wires
                      to the bell, causing it to ring.

                      Components of Doorbell Models

                      The components of a Doorbell Models are:

                                                               •  Buzzer: A buzzer  is a  small  device  that

                                                               makes sounds, like beeping or buzzing. It is
                                                               used in toys, alarms, or games to grab your

                           36    RoboGenius (V1.0)-II

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