Q4) A.)Correct the wrong sentences if you find it in only four(4) of the following sentences: a) The magnetic field intensity is a vector quantity, perpendicular to the direction of field density vector. b) The eddy currents always tend to flow perpendicular to the flux. c) The areas of the hysteresis loop is a measure of heat energy lost per cycle, so that choosing the hard magnetic material is better. d) In the short and open circuit test the core loss can be measured on either side of the transformer but the copper loss measured in the low voltage side. e) A transformer of voltage regulation (2.67%) is better than a transformer of (1.53%) and the regulation of ideal transformer is unity.

Q: From a technicians standpoint, how is the stregth of an electromagnet typically varied? a) by…

A: An electromagnet is a type of magnet in which the magnetic field is produced by an electric current

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A: The question is asking about the phenomenon that occurs when lines of magnetic force cut across a…

Q: The magnetic structure shown in the figure is built with a material whose magnetization curve is…

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Q: 7) A square magnetic core has a mean path length of 55 cm and a cross- sectional area of 150 cm². A…

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Q: 4. Induced current occurs when the magnetic flux through a conducting loop changes. This can happen…

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Q: flux

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Q: Consider the magnetic circuit in Figure. Assuming that the core u= 1000uo has a uniform cross…

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Q: What is the primary characteristic of an eddy current in a conductor exposed to a changing magnetic…

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Ampere Circuital Law

Ampere's Law states that "for any closed loop path, the sum of the length elements times the magnetic field in the direction of the length element is equal to the permeability times the electric current enclosed in the loop.”

Current Density

To design the electrical and electronic system, the current density is an important factor. The designer current level is the factor on which the circuit performance depends and with the help of the dimensions of the conducting current the current density is then determined. For instance, despite the lower current demanded by smaller devices as integrated circuits are reduced in size, there is a type of trend in achieving the higher device number in even smaller chip areas. The current density is increased in this region at higher frequencies because the conducting region in a wire becomes confined and this is known as the skin effect. The consequences increase as the current densities become higher.