Category Archives: engineering writtings

how works rAdio,tv,liquid crystAl displAy,process of pcb fAbricAtion,About FET,JFET,pinchoff voltAge,method of newtons third lAw,principles of physics,diode,transistor,counters,flip-flop,magnetism,thermodynamics,logic design.

power factor calculation


so many you asked me about describbing power factor.today i’m telling about this. POWER FACTOR=TRUE POWER/APPARENT POWER It should be noted that power factor, like all ratio measurements, is a unitless quantity. For the purely resistive circuit, the power factor … Continue reading

Posted in engineering writtings | Leave a comment

About PCB fAbricAtion


The passive lumped circuit elements (i.e. resistors, capacitors and inductors) and the active devices (i.e. diodes, transistors, FETs, UJTs, ICs etc.) are assembled on an insulated board commonly known as printed circuit board or PCB. This board has a thin … Continue reading

Posted in engineering writtings | Leave a comment

Introduction to Radio Communication.


Introduction Radio communication was made by radio waves which are electromagnetic waves like light 10 waves. These radio waves travel in space with the speed of light which is 3×10 cm/s. The radio waves get attenuated or weakened as they … Continue reading

Posted in engineering writtings | Leave a comment

Study of Colour Television


Introduction: A colour picture is actually monochrome picture on a white raster but with colours added for the main parts of the scene. The required colour information is in the chrominance(C) signal broadcast with the monochrome signal in the standard … Continue reading

Posted in engineering writtings | Leave a comment