Electromagnetic Field Theory If the static magnetic flux density is B, then Divergence of B = J. Curl of B = J. Divergence of B = 0. Curl of B = 0. Divergence of B = J. Curl of B = J. Divergence of B = 0. Curl of B = 0. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The radiation pattern of a parabola antenna is Highly directional Omnidirectional A figure of directional None of these Highly directional Omnidirectional A figure of directional None of these ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory What is the value of total electric flux coming out of a closed surface? Zero. Equal to volume change density. Equal to the surface charge density. Equal to total charge enclosed by the surface. Zero. Equal to volume change density. Equal to the surface charge density. Equal to total charge enclosed by the surface. 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 Antenna height Wave frequency Current of the antenna Distance of the point from the antenna Antenna height Wave frequency Current of the antenna ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A circular loop has its radius increasing at a rate of 2 m/s. The loop placed perpendicular to a constant magnetic field of 0.5 wb/m2. When the radius of the loop is 4 m. the emf induced in the will be 8 π V. 0.8 π V. Zero. 0.4 π V. 8 π V. 0.8 π V. Zero. 0.4 π V. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The energy stored in the magnetic field at a solenoid 30 cm long and 3 cm diameter wound with 1000 turns of wire carrying an current at 10 A, is 0.5 J. 1.15 J. 0.015 J. 0.15 J. 0.5 J. 1.15 J. 0.015 J. 0.15 J. ANSWER DOWNLOAD EXAMIANS APP
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