Basic Electricity.pptxbdjsbdjdbdjdbdjsnn
- 2. What is electricity? Electricity is the presence and flow of electric charge. Using electricity we can transfer energy in ways that allow us to do simple chores. Its best-known form is the flow of electrons through conductors such as copper wires. The word "electricity" is sometimes used to mean "electrical energy".
- 3. What is Electric Circuit? An electric circuit is a closed loop or pathway through which electric current can flow. It consists of several key components connected in a specific manner to enable the flow of electricity and perform various functions. The main components typically include:
- 4. 1. Power Source: Provides the voltage needed to drive the current through the circuit. Examples include batteries, generators, and power supplies.
- 5. 2. Conductors: Wires or other conductive materials that allow the electric current to flow from one component to another.
- 6. Conductor - a material (usually a metal such as copper) that allows electrical current to pass easily through. Insulator - a material in which electric current does not flow freely. conductors Insulation/insulating material
- 7. 3. Load: Any device or component that uses electrical energy to perform work. Examples include light bulbs, resistors, and motors.
- 8. 4. Switch: A device used to open or close the circuit, controlling the flow of current. When a switch is closed, it completes the circuit and allows current to flow. When open, it breaks the circuit and stops the flow of current.
- 9. Switches The schematic symbol for a switch is shown below. Much more complex switches are used in commercial wiring and electronic systems. A switch simply opens or closes a circuit. Switches have both current and voltage ratings.
- 12. 5. Protective Devices: Components such as fuses or circuit breakers that prevent damage to the circuit by interrupting the current in case of an overload or short circuit. Fuse Circuit breaker
- 13. Electric circuits can be classified into two main types: Series Circuits: Components are connected end-to-end in a single path. The same current flows through each component, but the voltage is divided among them. Parallel Circuits: Components are connected across common points or junctions, providing multiple paths for the current. Each component receives the same voltage, but the current is divided among the parallel paths.
- 15. Generator Transformer Circuit Breaker L1 L2 Generator - is a device that converts mechanical energy into electrical power. Transformer - used to increase or decrease AC voltages in electric power applications, such transformers being termed step-up type to increase voltage and step-down type to decrease voltage. Switch Electrical load
- 16. Electrical Overload - occurs when too much current passes through electric wires. The wires heat and can melt, with the risk of starting a fire. What causes electrical overload? A circuit overload is most commonly caused by having too many appliances plugged into one circuit. ... Using multiple heavy-load-drawing appliances (like dishwashers, ovens and washing machines) on the same circuit can also lead to overloading.
- 17. Short Circuit - is an electrical circuit that allows a current to travel along an unintended path with no or very low electrical impedance. This results in an excessive current flowing through the circuit.