Huygens principle of Wave Theory Huygens Principle helps us to find the position of a given wavefront at any instant if we know its present position. A wavefront is defined as the continuous locus of all particles of a medium vibrating in the same phase. For example, when a stone is dropped into a Pound … Read more
Construction of JFET N channel JFET consists of (i) N-type semiconductor bar which forms the channel and (ii) two heavily doped p-type regions formed by diffusion or alloying on two sides of the n-type bar. n channel JFET shown in the figure. In the case of p channel JFET, the channel is formed by a … Read more
Since transistor is a three terminal device, therefore, it can be connected in a circuit in three different ways: Common-base configuration Common-emitter configuration Common-collector configuration Definition – In this configuration, emitter terminal of transistor is common between the input and output circuits. The graphs showing the relationship between different currents and voltages of a transistor … Read more
Since transistor is a three terminal device, therefore, it can be connected in a circuit in three different ways: Common-base configuration Common-emitter configuration Common-collector configuration Definition – In common base configuration, base terminal of transistor is common between the input and output circuits. The graphs showing the relationship between different currents and voltages of a … Read more
Transistor Manufacturing Techniques The following four techniques are employed to manufacture transistors: 1. Grown technique. A PNP transistor is manufactured by drawing a single crystal from the melt of Germanium or silicon having p-type impurities. When the crystal is drawn, n-type impurities are added to form the base region of the transistor. Then p-type impurities … Read more
Junction Transistor Ordinarily, junction transistor is a three terminals Semiconductor device. A transistor is formed when a thin layer of one type of the intrinsic semiconductor is sandwiched between two thick layers of other types of extrinsic semiconductors. For Example 1. When a thin layer of p-type semiconductor is sandwiched between two thick layers of … Read more
What is tunnel diode? A tunnel diode is a PN junction diode having a very small depletion region and a very high concentration of impurity atoms in both p and n regions. The tunnel diode was invented by Dr. Leo Esaki. Symbol of tunnel diode Construction and Working of Tunnel Diode Tunnel Diode Construction The tunnel … Read more
In this article we will study about solar thermal power and how is solar energy converted into electricity. We will study the basic five method which are commonly use to convert solar power into electricity. Solar Thermal Power is the ultimate source of energy for life on earth. Solar Thermal Power is the heat energy … Read more
Ocean Thermal Energy The energy in the ocean waves is a converted form of concentrated solar energy. The energy which comes from the sun is transferred through Complex wind electromagnetic wave interactions. The effect of Earth’s temperature variation due to solar heating combined with a multitude of atmospheric phenomena (variation in temperature and pressure). It is used … Read more
In an Ordinary photograph of an object taken by a camera three-dimensional scenes is recorded as a two-dimensional scene. Since the emulsion on the photographic plate is sensitive to intensity variations only. Therefore, the photograph records only the intensity distribution in a certain plane. In ordinary photographs, the phase distribution that prevailed at the plane … Read more