BASIC ELECTRICAL ENGINEERING Lecture Notes - Lecture 1: Current Source, Kirchhoff'S Circuit Laws, Electrical Network
20 Jun 2021
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Document Summary
Voltage is the electrical force that moves electrons through a conductor. Voltage is electrical pressure also known as emf (electro motive force) that pushes electrons. The greater the difference in electrical potential push (difference between positive and negative), the greater the voltage force potential. It is the quantity or flow rate of electrons moving past a point within one second. Current flow is also known as amperage, or amps for short. Higher voltage will produce higher current flow, and lower voltage will produce lower current flow. Main effects of electric current: the three main effects of an electric current are: Some practical applications of the effects of an electric current include: Magnetic effect: bells, relays, motors, generators, transformers, telephones, car-ignition and lifting magnets. Chemical effect: primary and secondary cells and electroplating. Heating effect: cookers, water heaters, electric res, irons, furnaces, kettles and soldering irons. The rate at which something either absorbs or produces energy is the power absorbed or produced.
