Electromagnetic Field Theory A plane wave in a homogeneous medium has E = 50 sin(108t + 2z) uy V/m. What is the direction of wave propagation y direction. – z direction. – y direction. z direction. y direction. – z direction. – y direction. z direction. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory If an electric current carrying coil is placed in a uniform magnetic field in the direction of magnetic induction, then the net force and torque on the coil are both zero. the net force and torque are both finite. the net force is zero but torque is finite. the net force is finite but torque is zero. the net force and torque on the coil are both zero. the net force and torque are both finite. the net force is zero but torque is finite. the net force is finite but torque is zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The developed electromagnetic force and or torque in electromechanical energy conversion system act in a direction that tends to decrease the stored energy at constant mmf. to increase the stored energy at constant flux. to decrease the stored energy at constant flux. to decrease the co-energy at constant mmf. to decrease the stored energy at constant mmf. to increase the stored energy at constant flux. to decrease the stored energy at constant flux. to decrease the co-energy at constant mmf. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory According to Coulomb’s law, the force of attraction or repulsion, between to electrical charges is inversely proportional to the square of the distance between them. directly proportional to the square of the distance between them. inversely proportional to the distance between them. directly proportional to the distance between them. inversely proportional to the square of the distance between them. directly proportional to the square of the distance between them. inversely proportional to the distance between them. directly proportional to the distance between them. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The force experienced by a current carrying conductor lying parallel to a magnetic field is BIL. Bil cosθ. Bil sinθ. zero. BIL. Bil cosθ. Bil sinθ. zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory For a linear electromagnetic circuit, which of the following statement is true? Co-energy is zero. Field energy is equal to the co-energy. Field energy is lesser than the co-energy. Field energy is greater than the co-energy. Co-energy is zero. Field energy is equal to the co-energy. Field energy is lesser than the co-energy. Field energy is greater than the co-energy. ANSWER DOWNLOAD EXAMIANS APP
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