The current of electric circuit is analogous to which quantity of a m
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Magnetic field intensity is a ________ quantity.
Magnetic intensity is a
The potential at a point due to a charge is 15 V. If the distance is times, the potential at the point…
A theorem which states that an electric current flowing in a circuit produces a magnetic field at external…
The temperature coefficient of resistance of eureka is
What is used as the dielectric material in high voltage transformers?
Flux linkages equals
What revolves about the positive nucleus in a definite orbit?
A magnetizing force of 1000 AT/m will produce a flux density of __________ i
The emf induced in a coil due to the change of its own flux linked with it is called
The permittivity of a material is given by one of the following formulas.
Which of the following is a natural magnet?
Calculate the permeability (in T/A. t/m) of a magnetic material that has a relative permeability of…
A principle that states that only two electrons with different spins are allowed to exist in a given…
The reluctance of the magnetic circuit is ________ relative permeability of the material comprising…
One that has magnetic poles produced by internal atomic structure with no external current necessary
What is the relative permittivity of air?
Materials that have very high permeabilities (hundreds and even thousands times of that of free space)
Which of the following is a paramagnetic material?
The greater percentage of materials is _________.
One oersted (Oe) is equivalent to _____ Gb/cm.
A magnetic material losses its ferromagnetic properties at a point called
One electron volt (1 eV) is equivalent to _____ joules
The emf produced in a wire by its motion across a magnetic field does not depend upon the
The magnetic flux through a wire loop in a magnetic field does not d
If the length and area of cross-section of a wire are doubleda then its resistance
Which of the following materials has the least hysteresis loop area?
The magnetic field of a bar magnet most closely resembles the magnetic field of
When the ferromagnetic substance is inserted in a current- carrying solenoida the magnetic field is
Referred to as the specific reluctance of a material
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