Electromagnetic Field Theory The frequency of the power wave associated with an electromagnetic wave having field as E = e-z/δ cos(ω - zδ) is given by ω/4π. ω. ω/2π. ω / π. ω/4π. ω. ω/2π. ω / π. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In an iron core coil the iron core is removed so that the coil becomes an air core coil. The inductance of the coil will increase. initially increase and then decrease. remain the same. decrease. increase. initially increase and then decrease. remain the same. decrease. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The static electric field in a conductor is Unity None of these Infinity Zero Unity None of these Infinity Zero ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An emf of 16 volts is induced in a coil of inductance 4 H. The rate of change of current must be 4 A / s. 16 A / s. 32 A / s. 64 A / s. 4 A / s. 16 A / s. 32 A / s. 64 A / s. 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 both of sphere will have same potential. larger sphere will have greater potential. larger sphere will have smalled potential. smaller sphere will have zero potential. both of sphere will have same potential. larger sphere will have greater potential. larger sphere will have smalled potential. smaller sphere will have zero potential. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A loop antenna is a commonly used for Direction finding All of these Satellite communication Radar Direction finding All of these Satellite communication Radar ANSWER DOWNLOAD EXAMIANS APP