Electromagnetic Field Theory Find H for centre of solenoid having finite length d = 1 unit where N = no of turns = 500, I = 2 A. 1000. 500. 100. None of these. 1000. 500. 100. None of these. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Gradient of scalar field is expressed as Maximum rate of increase of scalar function at a point. Outward flux of a vector field per unit volume as the volume about the point tends to zero. Circulation of a vector field per unit area as the area tends to zero. Gradient of divergence of a vector field minus the curl of the vector field. Maximum rate of increase of scalar function at a point. Outward flux of a vector field per unit volume as the volume about the point tends to zero. Circulation of a vector field per unit area as the area tends to zero. Gradient of divergence of a vector field minus the curl of the vector field. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A circular ring is carrying uniformly distributed charge q and a point charge – Q on the axis of the ring. The magnitude of dipole moment of the charge system is (Assume distance between centre of ring and point charge is d and radius of ring R) QR. Q√(R2 + d2). QD. QR2/d. QR. Q√(R2 + d2). QD. QR2/d. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In case of antenna the ratio of the power radiated in the desired direction to the power radiated in the opposite direction is known as Transmission efficiency Front to back ratio None of these Loss coefficient Transmission efficiency Front to back ratio None of these Loss coefficient ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A metal surface with 1 meter radius and surface charge density of 20 coulombs / m2 is enclosed in a 10 m side cube. The total outward electric displacement normal to the surface of the cube is 40π coulombs. 80π coulombs. none of these. 10π coulombs. 40π coulombs. 80π coulombs. none of these. 10π coulombs. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The critical frequency of ‘F’ layer is greater than 30 MHz. False True False True ANSWER DOWNLOAD EXAMIANS APP
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