Very much greater than permeability of air

Slightly greater than permeability of air

Slightly less than permeability of air

Equal to the permeability of air

**What is the unit of magnetomotive force?****How is mutual inductance between two coils decreased?****When the ferromagnetic substance is inserted in a current- carrying solenoida the magnetic field is****If the distance between two magnetic poles decreases by 2 timesa the force between them****The idea of preventing one component from affecting another through their common electric and magnetic…****Germanium atom has ______ protons and ______ electrons.****A test charge means a charge of****The permittivity of a material is given by one of the following formulas.****Magnetic effects of the earth as a huge magnet with north and south poles.****One weber of flux is equal to _______ magnetic lines of force.****A law establishing the fact that the algebraic su of the rises and drops of the mmf around a closed…****Amorphous solid is also called****What is the diameter of an atom?****One electron volt (1 eV) is equivalent to _____ joules****A positively charged body has****What bond is formed when electrons in the outermost energy orbits of the atoms are shared between two…****The temperature coefficient of resistance of semiconductors is****The magnetic field of a bar magnet most closely resembles the magnetic field of****Lenz' law states that the direction of the induced emf and hence current****What is the measure of the density and sign of the electric charge at a point relative to that at some…****Three charges of +5 Ca -6 C and +9 C are placed inside a sphere. What is the total flux passing through…****A theorem which states that an electric current flowing in a circuit produces a magnetic field at external…****Permeance of a magnetic circuit is _________ the cross-sectional area of the circuit.****What is the usual value of leakage coefficient for electrical machines?****Why is it that the magnitude of magnetomotive force required for air gap is much greater than that required…****The potential at a point due to a charge is 15 V. If the distance is times, the potential at the point…****The ratio of the permeability of material to the permiabiity of air or vacuum.****A principle that states that only two electrons with different spins are allowed to exist in a given…****A magnetizing force of 1000 AT/m will produce a flux density of __________ i****Materials whose permeabilities are slightly greater than that of free space**