Electromagnetic Field Theory Magnetostriction is a phenomenon of change in physical dimensions of ferromagnetic materials during magnetism. generation of magnetism in electrical conductors. generation of electricity in ferromagnetic materials. change in permeability of ferromagnetic materials during magnetism. change in physical dimensions of ferromagnetic materials during magnetism. generation of magnetism in electrical conductors. generation of electricity in ferromagnetic materials. change in permeability of ferromagnetic materials during magnetism. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The hysteresis loop of a magnetic material has an area of 5 cm2 with the scale given as 1 cm = 2 AT and 1 cm = 50 mwb At 50 Hz; the total hysteresis loss is 50 W. 15 W. 20 W. 25 W. 50 W. 15 W. 20 W. 25 W. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory When the phase velocity of an EM wave depends on frequency in any medium the phenomenon is called Absorption Scattering Dispersion Polarisation Absorption Scattering Dispersion Polarisation ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The power gain of a half-wave dipole with respect to an isotropic radiator is 2.15 db 3 db 6 db 4.15 db 2.15 db 3 db 6 db 4.15 db ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Mutual inductance between two magnetically coupled coils depends on the number of their turns. cross sectional area of their common core. permeability of core. all of above. the number of their turns. cross sectional area of their common core. permeability of core. all of above. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The radiation pattern of loop antenna is Cardoid or Limacon Elliptical Circle Semicircle Cardoid or Limacon Elliptical Circle Semicircle ANSWER DOWNLOAD EXAMIANS APP
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