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    Some of the key parts of an electronic circuit are:

                        • Power Source: This is like the battery that gives energy to the circuit, just
                        like how our bodies need food to work. It can be a battery or electricity from

                        a wall plug.
                        • Wires: These are like the roads that connect different parts of the circuit.

                        They help the electricity travel from one place to another.

                        • Components: These are the tiny pieces that do different jobs in the circuit.
                        Some common components include:

                        ¡ ¡Lights: These can make things glow, like in a flashlight.

                        ¡ ¡Buttons: These let you turn things on and off.
                        ¡ ¡Speakers: These help you hear sounds, like music or voices.

                     Battery and Its Polarity

                     Battery:  A  battery  is  a  small  container  that  stores
                     energy, like a fuel tank for electricity. It provides power

                     to things like toys, flashlights, and remote controls so
                     they can work.

                     Inside  a  battery,  there  are  special  chemicals  that
                     create electricity when the battery is connected to a

                     device. When you put a battery in a toy and turn it on,
                     the battery sends electricity to the toy, making it move or light up.

                     Batteries come in different shapes and sizes, and when they run out of energy,
                     you can replace them with new ones or recharge them if they are rechargeable.

                     So, a battery is very important because it helps us use our favourite gadgets
                     and toys.

                                                   Polarity:  Polarity  means  the  direction  in  which
                                                   electricity flows. It’s like knowing which way is “up”

                                                   and “down” for electricity.

                                                   In a battery, there are two ends: a positive side (+) and
                                                   a negative side (-). The electricity always flows from
                                                   the positive side to the negative side. This direction

                                                   is important because if you connect things the wrong
                                                   way, they won’t work properly.

                                                                            Understanding Circuits and Electronics  33

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