Electromagnetic Field Theory Magnetostriction is a phenomenon of generation of magnetism in electrical conductors. generation of electricity in ferromagnetic materials. change in physical dimensions of ferromagnetic materials during magnetism. change in permeability of ferromagnetic materials during magnetism. generation of magnetism in electrical conductors. generation of electricity in ferromagnetic materials. change in physical dimensions of ferromagnetic materials during magnetism. change in permeability of ferromagnetic materials during magnetism. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A point pole has a strength of 4π × 10-4 weber. The force in newtons on a point pole of 4π × 1.5 × 10-4 weber placed at a distance of 10 cm from it will be 3.75 N. 7.5 N. 20 N. 15 N. 3.75 N. 7.5 N. 20 N. 15 N. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The magnetic field required to reduce the residual magnetism to zero is called Hysteresis. Coercivity. Saturation magnetism. Retentivity. Hysteresis. Coercivity. Saturation magnetism. Retentivity. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory What is the value of total electric flux coming out of a closed surface? Equal to volume change density. Equal to the surface charge density. Equal to total charge enclosed by the surface. Zero. Equal to volume change density. Equal to the surface charge density. Equal to total charge enclosed by the surface. Zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Parabolic and lens antenna used at Low frequency High frequency Medium frequency Microwave frequency Low frequency High frequency Medium frequency Microwave frequency ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory For an inductor, current is proportional to none of them. both (A) and (B). magnetic field. voltage across the inductor. none of them. both (A) and (B). magnetic field. voltage across the inductor. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS