Ajay Sharma

Kirchhoff’s Current Law Examples

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 …

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Synchronization of Alternators

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: The terminal voltage of the incoming alternator must be equal to that of the bus bars voltage. The speed …

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Wiegand Sensor Working Principle & Applications

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 …

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Barkhausen Sensor Working Principle & Applications

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 & Applications

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 material consisting of many …

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