When a high reverse-biased voltage applied to a diode may create a high reverse current, which can generate excessive heat and cause a diode to break down. The applied reverse voltage at which the breakdown occurs is called the breakdown voltage, or peak reverse voltage. A special diode called a zener diode is connected to […]
Thevenin’s theorem is very useful in solving electrical networks which may not be easily solved by other methods. In this article, I will discuss this theorem and show some of the thevenin theorem examples to make this theorem easily understandable. Thévenin’s theorem is a circuit analysis technique that reduces any linear bilateral network to an equivalent
The Kirchhoff’s Laws are very useful in solving electrical networks which may not be easily solved by Ohm’s Law. In this article, I will describe the Kirchhoff’s current law and will show some kirchhoff’s current law examples to make this law easily understandable. Kirchhoff’s current law states the following: The summation of currents entering a node
Hi friends, In this article, I am going to discuss the MHD generator working principle. Also I will provide you some basic information about it. A Magneto Hydrodynamic Generator is a device which converts heat energy of a fuel directly into electrical energy without a conventional electric generator. This system eliminates all the
The current transformers are always used with the secondary windings circuit closed through ammeters, current coils of watt-meters or relay coils. Its secondary winding circuit should not be opened while its primary winding is energized. A violation of this precaution may lead to serious consequences. Here, I am discussing the reasons behind it. As we
Hi friends, in this article, I am going to discuss about lvdt working principle, lvdt advantages and disadvantages. My article will increase your knowledge, I hope so. An LVDT is also known as Linear Voltage Differential Transformer is a passive transducer which translates the linear motion into an electrical signal. It consists of
The procedure of connecting an alternator in parallel with another or with common bus bars is called synchronization of alternator. Conditions for Synchronization of Alternators For proper synchronization of alternator, the following conditions must be fulfilled: All these conditions must be full filled to ensure that there will be no circulating current between the windings
The Wiegand effect relates to the nonlinear magnetization behavior of a Wiegand wire that switches its polarity under a strong magnetic field. A Wiegand wire is a low-carbon Vicalloy (a family of cobalt–iron–vanadium alloys) wire, typically consisting of 52% cobalt, 37.37% iron, 10% vanadium, 0.4% manganese, 0.2% silicon, and only 0.03% carbon. The features of
The Barkhausen effect relates magnetism to acoustics. In 1919, a German scientist Heinrich Barkhausen found that whenever he moved a magnet close to an iron-cored wire, an audible roaring sound (called Barkhausen noise or Barkhausen emission) was heard through an amplified speaker. The sound reflects a sudden (instead of a smooth or gradual) shifting or
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Magnetostrictive Sensor Working Principle The magnetostrictive effect relates a material’s elastic state to its magnetic state. Nearly all FM materials such as iron, nickel, cobalt, and their alloy, exhibit a change in size and shape resulting from magnetization change. This effect is known as Joule effect. Joule effect can be understood by considering an FM
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