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    Some of the factors that affect resistance are:
                        Material: Metals have low resistance and rubber has high resistance.

                        Length of Wire: Longer wires have more resistance.
                        Thickness of Wire: Thicker wires have less resistance.

                        Temperature: Higher temperature can increase resistance in some materials.

                     Why Robots Need Electricity?

                     Robots are machines that can move, sense and perform tasks. To do all these things, robots need
                     energy and most robots get this energy from electricity.

                     Key Reasons Robots Need Electricity
                     Some of the reasons why robots need electricity are:

                        To Move: Robots use motors to move wheels, arms or legs. Electricity powers these motors,
                        making the robot go forward, backward or perform actions.

                        To Think (Processing): Robots have microcontrollers or computers
                        inside them. These devices need electricity to process information
                        and make decisions.

                        To Sense the Environment: Robots  use  sensors  to  detect  light,
                        distance,  temperature  or obstacles.  Electricity  powers  these
                        sensors so the robot can see and feel its surroundings.

                        To Communicate: Some robots can send signals, display messages
                        or connect to the internet. Electricity powers their communication
                        systems.

                        To Perform Tasks Efficiently: Whether picking objects, cleaning or assembling items, robots
                        use electricity to perform tasks faster and more accurately than humans.

                     CIRCUIT

                     A circuit is a closed path that allows electric current to flow
                     from a power source to an electrical device and back. Think
                     of it like a race track, the electrons (tiny particles that carry
                     electricity)  move  along the  track  to  deliver  energy  to  the
                     devices and then return to the start.

                     Electricity cannot move on its own, it needs a path to flow. A
                     circuit provides that path. If the path is complete, electricity can
                     flow and power devices like bulbs, fans, motors or computers.
                     If the path is broken anywhere (like a wire is cut or a switch is
                     open), the electricity stops and the device will not work.

                                                                                  Basics of Circuits for Robotics
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