Electromagnetic Field Theory For a linear electromagnetic circuit, which of the following statement is true? Co-energy is zero. Field energy is greater than the co-energy. Field energy is lesser than the co-energy. Field energy is equal to the co-energy. Co-energy is zero. Field energy is greater than the co-energy. Field energy is lesser than the co-energy. Field energy is equal to the co-energy. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory What is the value of magnetic vector potential due to an infinitesimally small current element, evaluated at infinite distance from it? Zero. Unity. Infinity. Depends on strength of current element. Zero. Unity. Infinity. Depends on strength of current element. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Plane z = 10 m carries charge 20 C/m2. The electric field intensity at the origin is – 72 πuz v/m. – 360 πuz v/m. – 10 uz v/m. – 18 πuz v/m. – 72 πuz v/m. – 360 πuz v/m. – 10 uz v/m. – 18 πuz v/m. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory RF inductor are characterized by high current rating and high resistance. low current rating and low resistance. low current rating and high resistance. high current rating and low resistance. high current rating and high resistance. low current rating and low resistance. low current rating and high resistance. high current rating and low resistance. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An electric dipole of moment P is placed in front of a ground sphere. The change induced on the surface of the sphere is (Assume radius of sphere = R and distance from dipole to centre of sphere = d) PR 2/d3. PR/d2. Zero. PR/d. PR 2/d3. PR/d2. Zero. PR/d. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The Biot-savarts law is a general modification of Amperes law. Lenzs law. Faradays law. Kirchhoffs law. Amperes law. Lenzs law. Faradays law. Kirchhoffs law. ANSWER DOWNLOAD EXAMIANS APP
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