Related Questions
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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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Permanent magnets can be found in
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What bond is formed when one or more electrons in the outermost energy orbit of an atom are transferred to another?
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The physical motion resulting from the forces of magnetic fields is called
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The energy stored in an electrostatic field or electromagnetic field is called
A. Electromagnetic energy
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The temperature coefficient of resistance of insulators is
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What is the other name for dielectric strength?
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Materials whose permeabilities are slightly greater than that of free space
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One electron volt (1 eV) is equivalent to _____ joules
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Refers to the non- metallic materials that have the ferromagnetic properties of iron.
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What is the SI unit of reluctance?
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Which of the following has the highest permeability?
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The direction of force o a current carrying conductor placed in a m found by
B. Fleming's left hand rule
C. Fleming's right hand rule
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A magnetic circuit carries a flux iin the iron part and a fluxgin the air gap. What is the leakage coefficient?
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The K shell or the first shell has how many permissible number of orbiting electrons?
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Defined as the flux density produced in it due to its own induced magnetism
A. Magnetic field intensity
B. Electric field intensity
C. Electromagnetic field intensity
D. Intensity magnetization
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Flux density is measured in
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A one cubic cm of copper has how many free electrons at room temperature?
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The magnetic flux through a wire loop in a magnetic field does not d
B. The magnitude of the field
D. The angle between the plane of the loop and the direction
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Which of the following statements is TRUE?
A. Silicon dioxide is a good
B. The current carriers in conductors are valence electrons
C. For conductorsa the valence electron are strongly attracted to the nucleus
D. The valence electrons are located in the nucleus of an atom
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The net electrical charge in an isolated system remains constant. This is known as
A. Law of conservation of charge
D. Law of conservation of energy
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What is the usual value of leakage coefficient for electrical machines?
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What is the cgs unit of magnetomotive force?
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The magnitude of the induced emf in a coil is directly proportional to the rate of change of flux linkages. This is known as
B. Faraday's second law of electromagnetic induction
C. Faraday's first law of electromagnetic induction
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The emf produced in a wire by its motion across a magnetic field does not depend upon the
C. Orientation of the wire
D. Flux density of the field
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The magnetic materials should have a large hysteresis loss for one of the following applications.
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What solid has no defined crystal structure except perhaps in the arrangement of the nearest neighboring atoms or ions?
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A law establishing the fact that the algebraic su of the rises and drops of the mmf around a closed loop of a magnetic circuit is equal to zero.
A. Kirchhoff's circuital law
B. Maxwell's circuital law
C. Ampere's circuital law
D. Coulomb's circuital law
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The quantity 10^6 maxwells is equivalent to one
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The lagging effect between flux density of the material and the magne