Related Questions
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What is the typical saturation flux density for most magnetic materials?
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The property of magnetic materials of retaining magnetism after withdrawal of the magnetizing force is known as
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What is the practical unit of electrical energy?
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The B-H curve for ________ is a straight line passing through the origin.
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The phenomenon by which a subtracts pieces of iron
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The science of adapting electronics to aerospace flight.
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What is the diameter of an atom?
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Defined as the number of lines per unit area through any substance in a plane at right angles to the lines of force
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Residual magnetism refers to the flux densitya which exists in the iron core when the magnetic field intensity is
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If the right handed bottle-opener cork screw is assumed to be along the conductor so as to advance in the direction of current flow, the motion of its handle will indicate the direction of magnetic flux produced around the conductor. This is known as
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The lagging effect between flux density of the material and the magne
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If the number of valence electrons of an atom is more than 4a the substance is called
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The core of a transformer heats up when its primary is fed from an ac source because of
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What is the value of the absolute permittivity of air?
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An electron- volt (eV) is a unit of
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The mass of proton is __________ the mass of an electron.
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The magnetic potential in a magnetic circuit can be measured in terms of
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Which of the following electric quantities is vector in character?
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What principle states that each electron in an atom must have a different set of quantum numbers?
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Which of the following has the highest permeability?
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What is the unit of reluctance?
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Magnetic intensity is a
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The greater percentage of materials is _________.
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The idea of preventing one component from affecting another through their common electric and magnetic field is referred to as
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If the value of 25 of a conductor is 1/230 per oCa then the value of 0is
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Germanium atom has ______ protons and ______ electrons.
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The uncharged particles which have no effect on its atomic charge.
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The temperature coefficient of resistance of conductors is
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States that the ratio of the thermal conductivity is proportional to the absolute temperature for all metals.
A. Wien's displacement law
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A law stating that the magnetic susceptibilities of most paramagnetic substances are inversely proportional to their absolute temperatures.