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The relative permeability of a magnetic material is 10^5. What is its permeability?
A t/m is a unit of
The resistivity of a conductor ___________ with an increase in temperature.
If the value of 0 a conductor is 1/234 per oCa then the value of 18is
The greater percentage of materials is _________.
Electron is a Greek word for
When the relative permeability of a material is slightly more than 1a it is called ______ material.
A magnetizing force of 1000 AT/m will produce a flux density of __________ i
A magnetic material losses its ferromagnetic properties at a point called
The emission of electrons from hot bodies is called
A law that states that the current in a thermionic diode varies directly with the three- halves power…
One coulomb of charge consists of ________ electrons.
A factor used to correct for the electrostatic forces of the more distant ions in an ionic solid.
Permanent magnets can be found in
What is the value of the absolute permittivity of air?
Used to maintain strength of magnetic field
Calculate the permeability (in T/A. t/m) of a magnetic material that has a relative permeability of…
A permanent magnet does not exert a force on
What is the SI unit of magnetic flux?
The electric flux density is a ________ quantity.
The magnetic field inside a solenoid
The dielectric constant of most materials lies between
If the number of valence electrons of an atom is more than 4a the substance is called
Defined as a closed path in which magnetic induction or flux flows
If the value of 25 a conductor is 1/255 per oCa then the value of 20is
The magnetic flux of 2000 lines is how many Maxwells?
The temperature coefficient of resistance of conductors is
If the number of valence electrons of an atom is less than 4a then the substance is probably
The potential at a point due to a charge is 15 V. If the distance is times, the potential at the point…
The magnetic materials should have a large hysteresis loss for one of the following applications.
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