Electromagnetic Field Theory Whenever the magnetic flux changes with respect to an electric conductor or a coil, an EMF is induced in the conductor is Faraday’s first law fourth law third law second law first law fourth law third law second law ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The principle of dynamically induced emf is utilized in a generator. thermocouple. choke. transformer. generator. thermocouple. choke. transformer. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The critical frequency of ‘F’ layer is greater than 30 MHz. True False True False ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Gradient of scalar field is expressed as Maximum rate of increase of scalar function at a point. Outward flux of a vector field per unit volume as the volume about the point tends to zero. Gradient of divergence of a vector field minus the curl of the vector field. Circulation of a vector field per unit area as the area tends to zero. Maximum rate of increase of scalar function at a point. Outward flux of a vector field per unit volume as the volume about the point tends to zero. Gradient of divergence of a vector field minus the curl of the vector field. Circulation of a vector field per unit area as the area tends to zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Magnetostriction is a phenomenon of change in permeability of ferromagnetic materials during magnetism. generation of magnetism in electrical conductors. change in physical dimensions of ferromagnetic materials during magnetism. generation of electricity in ferromagnetic materials. change in permeability of ferromagnetic materials during magnetism. generation of magnetism in electrical conductors. change in physical dimensions of ferromagnetic materials during magnetism. generation of electricity in ferromagnetic materials. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory How much current must flow in a loop of radius 1m to produce a magnetic field of 1 mA/m? 1.5 mA. 1mA. 2 mA. 2.5 mA. 1.5 mA. 1mA. 2 mA. 2.5 mA. ANSWER DOWNLOAD EXAMIANS APP
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