Electromagnetic Field Theory A loop is rotating about x-axis in a magnetic field, B = BO cos(ω + φ) ay. The voltage in the loop is Due to rotating only. Zero. Due to transformer only. Due to both rotating and transformer action. Due to rotating only. Zero. Due to transformer only. Due to both rotating and transformer action. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In above problem the induced emf will be reduced to half if the conductor moves an angle of 75° to the direction of field. 30° to the direction of field. 60° to the direction of field. 45° to the direction of field. 75° to the direction of field. 30° to the direction of field. 60° to the direction of field. 45° to the direction of field. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The power gain of a half-wave dipole with respect to an isotropic radiator is 6 db 2.15 db 4.15 db 3 db 6 db 2.15 db 4.15 db 3 db ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The transmitting antennas for lower frequencies (below 500 kHz) are generally Vertical grounded wire type Any of the above Horizontal suspended wire type Parabolic reflector type Vertical grounded wire type Any of the above Horizontal suspended wire type Parabolic reflector type ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Midway between two equal and similar charges, a third equal and similar charge is placed, then this third charge will will move out of the field of influence of two charges. not be equilibrium. be in unstable equilibrium. remain in stable equilibrium. will move out of the field of influence of two charges. not be equilibrium. be in unstable equilibrium. remain in stable equilibrium. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two spheres of radius r1 and r2 are connected by a conducting wire. Each of the spheres has been given a charge Q. Now smaller sphere will have zero potential. larger sphere will have smalled potential. both of sphere will have same potential. larger sphere will have greater potential. smaller sphere will have zero potential. larger sphere will have smalled potential. both of sphere will have same potential. larger sphere will have greater potential. ANSWER DOWNLOAD EXAMIANS APP
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