One ampere- turn is equivalent to _____ gilberts
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The force which set ups or tends to set up magnetic flux in a magnetic circuit
A negatively charge body has
The reluctance of the magnetic circuit is ________ relative permeability of the material comprising…
The emf produced in a wire by its motion across a magnetic field does not depend upon the
Who developed the electromagnetic theory of light in 1862?
The magnetic field around the conductor is determined by the
The contribution to the ionization in an ionization chamber by electrons liberated from t he walls.
The diameter of a hydrogen atom is approximately ______ cm.
The ability of a mechanically stressed ferromagnetic wire to recognize rapid switching of magnetization…
The dielectric constant of most materials lies between
A current if flowing east along a power line. If the earth's field is neglecteda the direction of the…
Mmf in a magnetic circuit corresponds to _____ in an electric circuit
Electromotive force in a circuit
What is the typical saturation flux density for most magnetic materials?
If the solenoid is gripped by the right hand with the fingers pointing the direction of current flowa…
Who discovered the most important electrical effects which is the magnetic effect?
Define as that pole which when placed in air from a similar and equal pole repels it with a force of…
The uncharged particles which have no effect on its atomic charge.
If the distance between two magnetic poles decreases by 2 timesa the force between them
If the number of valence electrons of an atom is less than 4a the substance is called
Theory of ferromagnetic phenomena which assumes each atom is a permanent magnet which can turn freely…
The energy stored in an electrostatic field or electromagnetic field is called
Who demonstrated that there are magnetic effects around every current-carrying conductor and that current-carrying…
Refers to the magnetic lines
Which of the following is used by permanent magnets as the magnetic material?
What is the SI unit of conductance?
If the number of valence electrons of an atom is less than 4a then the substance is probably
Ohm's law can be used only to a _____ circuit or component.
A t/m is a unit of
What is the other name for dielectric strength?
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