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4. Capacitors
Capacitors charge and discharge quickly. Charging and discharging depend on the capacitance of the capacitor. In contrast to an inductor which keeps the Current constant, Capacitor keeps the Voltage constant. How does a capacitor maintain a constant voltage? Capacitor is made of two conducting plates separated by an insulating Material called “Dielectric”. By placing a…
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3. Inductors
Same as the coil used in the previous notes. The Inductor is a coiled conductor usually a copper wire. An Inductor connected across a DC voltage source from the circuit below has a current flow across the Inductor coil. This generates a Magnetic field around the Coil. This generated Magnetic field forces the current from…
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2. Grounding in AC supply
Household equipment power cord usually has 3 terminals Neutral, Line, and Ground. For a 3-phase circuit, the circuit below shows Line and neutral. The long-distance transmission uses 3 Phase supply. Houses usually get single-phase and a limited number of 2-phase outlets for high demanding Electrical loads. Voltage across the two phases(two coils) will be double…
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1. DC/AC(1 Phase and 3 Phase) Power Supply
DC Supply DC is straightforward. In a DC power supply, the current flow only in one direction, between the negative Cathode and to positive Anode. When any load (like a resistor or an LED) is connected across a battery, the current flows through the load and the load uses the current flow. In the case…