An electron- volt (eV) is a unit of
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Who discovereda the relationship between magnetism and electricity that serves as the foundation for…
Electric field intensity at a point is numerically equal to ________ at that point.
A current if flowing east along a power line. If the earth's field is neglecteda the direction of the…
The resistivity of a conductor ___________ with an increase in temperature.
When the relative permeability of a material is slightly more than 1a it is called ______ material.
When a current carrying conductor is placed in a magnetic fielda the maximum force will act on the conductor…
Steel is hard to magnetize because of its
This paper does not exhibit electricity because it contains the same number of
__________ is a substance of whose molecules consist of the same kind of atom.
An alloy of 40 percent iron and 60 percent nickel.
Electric lines of force leave or enter the charge surface at an angle of
The physical motion resulting from the forces of magnetic fields is called
The temperature coefficient of resistance of conductors is
Residual magnetism refers to the flux densitya which exists in the iron core when the magnetic field…
The current of electric circuit is analogous to which quantity of a m
A magnetic material losses its ferromagnetic properties at a point called
The quantity of magnetism retained by a magnetic material after withdrawal of the magnetizing force…
The magnetic potential in a magnetic circuit can be measured in terms of
The relation between absolute permittivity of air ( 0)a absolute p and velocity of light (c) is given…
Formed when there exist distant electronic interactions between (opposite) charges present in the neighboring…
When the ferromagnetic substance is inserted in a current- carrying solenoida the magnetic field is
One farad equals
The air space between poles of magnets
Which of the following electric quantities is vector in character?
The temperature coefficient of resistance of insulators is
The magnetic field of a bar magnet most closely resembles the magnetic field of
The magnetic field inside a solenoid
A law that states that the polarity of the induced voltage will oppose the change in magnetic flux causing…
The temperature coefficient of resistance of semiconductors is
The force which set ups or tends to set up magnetic flux in a magnetic circuit
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