Electromagnetic Field Theory Biot-Savarts law states the relation between magnetic intensity and surface current only. (A), (B), and (D) are all correct. volume current only. filament current only. surface current only. (A), (B), and (D) are all correct. volume current only. filament current only. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The force on a charge moving with velocity v under the influence of electric and magnetic fields is given by which one of the following q(E +V × H). q(H + V × E). q(E + B × V). q(E + V × B). q(E +V × H). q(H + V × E). q(E + B × V). q(E + V × B). ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory When a conductor moves in the field, so that it makes an angle 8 with the lines of flux, the force F is given as : F = Bl sin2 0. Yes No Yes No ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The lagging of flux density behind the applied magnetising force is known as All of these flux. permeance. hysteresis. All of these flux. permeance. hysteresis. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The magnetic field at any point on the axis of current carrying circular coil will be zero. perpendicular to axis. at an angle 45o with the axis. parallel to axis. zero. perpendicular to axis. at an angle 45o with the axis. parallel to axis. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A waveguide operated below cut off frequency can be used as An isolator An attenuator Phase shifter None An isolator An attenuator Phase shifter None ANSWER DOWNLOAD EXAMIANS APP