This document discusses electricity and electrical circuits. It defines electricity as the flow of electrons and explains that a complete electrical circuit is required for electricity to flow. The key components of an electrical circuit include a power source, protection device, load device, control device, and conductors. Circuits can be either series or parallel. A series circuit has only one path for electrons to flow, while a parallel circuit has multiple paths.

1. ELECTRICITY E-LEC-TRICITY Circuits

2. WHAT IS ELECTRICITY Electricity is electrons in motion Electrons have a negative charge

3. CIRCUIT The path electrons flow along is called a circuit

4. ELECTRICAL CIRCUIT REQUIREMENTS A complete Electrical Circuit is required in order to make electricity practical. Electrons must flow from and return to the power source. Basic components: Power Source is needed to supply the flow of electrons (electricity). Protection Device prevents damage to the circuit in the event of a short. Load Device converts the electricity into work Control Device allows the user control to turn the circuit on or off. Conductors provide an electrical path to and from the power source.

5. Open Circuit Closed Circuit

6. SERIES CIRCUIT has only one path to ground, so electrons must go through each component to get back to ground. All loads are placed in series. Therefore: 1. An open in the circuit will disable the entire circuit. 2. The voltage divides (shared) between the loads. 3. The current flow is the same throughout the circuit. 4. The resistance of each load can be different .

7. PARALLEL CIRCUIT has multiple paths or branches to ground. Therefore: 1 . In the event of an open in the circuit in one of the branches, current will continue to flow through the remaining. 2. Each branch receives source voltage. 3. Current flow through each branch can be different. 4. The resistance of each branch can be different.

8. Series Circuit Parallel Circuit

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