Related Questions
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Permeance of a magnetic circuit is _________ the cross-sectional area of the circuit.
A. directly proportional to
B. inversely proportional to
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Lenz's law is the consequence of the law of conservation of
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Defined as the ratio of the volume occupied by the atoms or ions in a unit cell divided by the volume of the unit cell and is used to measure the compactness of a crystal.
A. Atomic packing factor (APF)
B. Ionic Packing Ratio (IPR)
C. Atomic compacting factor (ACF)
D. Ionic compacting ratio (ICR)
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Electric lines of force leave or enter the charge surface at an angle of
D. depending upon the angle of launch and entry
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The core of a magnetic equipment uses a magnetic material with
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What is the typical saturation flux density for most magnetic materials?
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A group of magnetically aligned atoms is called
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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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Magnetic effects of the earth as a huge magnet with north and south poles.
D. Terrestrial ferromagnetism
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The air space between poles of magnets
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The science of adapting electronics to aerospace flight.
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The reluctance of a magnetic circuit is not dependent on which of the following?
A. Number of turns of coil
C. Flux density in the circuit
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Magnetic intensity is a
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Small voltages generated by a conductor with current in an external magnetic field.
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The temperature coefficient of resistance of eureka is
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An effect which is generally used in the gausameter to measure flux density.
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How many neutrons does a copper atom have?
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The customary energy unit in atomic and nuclear physics is
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The magnetic flux of 2000 lines is how many Maxwells?
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Which of the following is a natural magnet?
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What type of bond is formed when there exists some form of collective interactions between the (negatively charged) electrons and (positively charged) nuclei in a solid?
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Who discovered the most important electrical effects which is the magnetic effect?
A. Hans Christian Oersted
B. Sir Charles Wheatstone
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Two similar polesa each 1Wba placed 1 m apart in air will experience a repulsive force of
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A law stating that the magnetic susceptibilities of most paramagnetic substances are inversely proportional to their absolute temperatures.
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The force between two magnetic poles is _____ the relative permeability of the medium.
A. directly proportional to
C. inversely proportional to
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One weber of flux is equal to _______ magnetic lines of force.
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Another term for corona discharge.
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The current of electric circuit is analogous to which quantity of a m
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The electric potential across part AB of a circuit is 5 V; point A being at higher potential. If a charge of 5 Cmoves from A to Ba then energy released as
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What is the SI unit of magnetic flux?