Electromagnetic Field Theory Radiation intensity in a given direction is the Energy radiated per square metre None of these Power radiated per unit solid angle in that direction Power radiated per square metre Energy radiated per square metre None of these Power radiated per unit solid angle in that direction Power radiated per square metre ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The Kirchhoff’s current law is implict in expression Divergence of D = ρv. Curl of H = J + (δ D)/(δ t). Divergence of B = 0. Surface integral of (j.ds) = 0. Divergence of D = ρv. Curl of H = J + (δ D)/(δ t). Divergence of B = 0. Surface integral of (j.ds) = 0. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of following is true for a purely inductive circuit ? Actual power of the circuit is zero. Apparent power of the circuit is zero. Reactive power of the circuit is zero. Any capacitance even if present in the circuit will not be charged. Actual power of the circuit is zero. Apparent power of the circuit is zero. Reactive power of the circuit is zero. Any capacitance even if present in the circuit will not be charged. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory What is the value of total electric flux coming out of a closed surface? Equal to total charge enclosed by the surface. Equal to the surface charge density. Equal to volume change density. Zero. Equal to total charge enclosed by the surface. Equal to the surface charge density. Equal to volume change density. Zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In order to minimize loss due to hysteresis the magnetic material should have high resistivity. large coercivity. small B-H loop area. high hysteresis coefficient. high resistivity. large coercivity. small B-H loop area. high hysteresis coefficient. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In case of surface waves the field strength at a point is directly proportional to Distance of the point from the antenna Wave frequency Current of the antenna Antenna height Distance of the point from the antenna Wave frequency Current of the antenna Antenna height ANSWER DOWNLOAD EXAMIANS APP
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