Hans Christian Oersted

Sir Charles Wheatstone

Georg Ohm

James Clerk Maxwell

**What is the relative permittivity of air?****Theory of ferromagnetic phenomena which assumes each atom is a permanent magnet which can turn freely…****The customary energy unit in atomic and nuclear physics is****Refers to the magnetic lines****A magnetic flux of 2.5 x10^4 Wb through an area of 5 x10^4 square meters results in****The force between two magnetic poles is _____ their poles strength.****What is the practical unit of electrical energy?****A magnetic circuit carries a flux iin the iron part and a fluxgin the air gap. What is the leakage coefficient?****Permeance is analogous to****What is the diameter of an atom?****Permanent magnets can be found in****__________ is a substance of whose molecules consist of the same kind of atom.****What is the other name for dielectric strength?****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?****The resistivity of a conductor ___________ with an increase in temperature.****If you hold the conductor with right hand so that the stretched thumb points in the direction of the…****Which of the following has the least number of valence electrons?****One electron volt (1 eV) is equivalent to _____ joules****The simplest type of atom to exist is the ______ atom.****Who demonstrated the theory of electromagnetic induction in 1831?****The process by which an emf and hence current is generated or induced in a conductor when there is a…****Permeance of a magnetic circuit is _________ the cross-sectional area of the circuit.****The permeability of permalloy is****What determines the value of the temperature coefficient of resistance of a material?****A permanent magnet does not exert a force on****The potential at a point due to a charge is 15 V. If the distance is times, the potential at the point…****How much is the flux in Weber in the above problem?****The magnetic flux through a wire loop in a magnetic field does not d****The unit of flux density is**