power systems loss

Classes of incandescent lamps as cataloged by the manufacturers.   Large lamps, miniature lamps, and photographic lamps are the three major groups of incandescent lamps as divided and cataloged by the manufactures. As a summary, large lamps are those normally used for interior and exterior general and task lighting. Miniature lamps are generally used in automative, aircraft, and appliance applications. Photographic lamps, as the name implies, are used in photography and projection service.

How is resistor identified according to its color coding? A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. The current through a resistor is in direct proportion to the voltage across the resistor's terminals. Thus, the ratio of the voltage applied across a resistor's terminals to the intensity of current through the circuit is called resistance. This relation is represented by Ohm's law: