The main components are 3 and each part is working as follows.1. The electrical supply. A voltage source and a current to the equipment used by power supply electrical energy can be นำมาได้ from many sources, such as from a chemical reaction. From the coil magnetic field and cut from the light and so on. Tell the unit of measurement is the volt (Volt) or V.2. Load or electrical equipment are devices used in electrical work. Load acts to change electric energy into the energy of other images, such as sound, light, heat, cold, and vibration, etc., by including all kinds of electrical equipment load is saying something. Such as a refrigerator, washing machine, TV, radio, fan and air conditioner, etc. to load each kind to electrical energy unequal, represented by a voltage. Current and electric power.3. Wires per cycle, a late lead or cables. Used to connect circuits on each other like anniversary. The voltage source to the load currents flowing through the circuit. From source to pay no load and return the anniversary of source to pay again. Electrical cables are used per cycle of copper insulated surrounding for safety in use.2. On the circuit board.An electrical circuit is used to load the The load used to use in the circuit can be 3 together, including the series circuit, the parallel circuit and electric circuit mixes.2.1 the circuit in series.Series circuit means using electrical equipment together in a way that one end of the device ตัวที่ 1 connect device at the end of the rest of 2 device that 2 to the device that 3 and on this style around which to this to make electricity flow in the same direction. Series circuits have the same long electricity within every point resistance include the serial circuit is to bring all the resistance values brought together the voltage circuit, the serial voltage appears metropolis mom all current flowing through the resistor to a voltage which occurs is not. By calculating the berth available from Ohm"s law.
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