Electromagnetic Field Theory Which of this statement is not characteristic of a static magnetic field magnetic flux lines are always closed. it is conservative. it has no sink or sources. it is solenoidal. magnetic flux lines are always closed. it is conservative. it has no sink or sources. it is solenoidal. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Mutual inductance between two magnetically coupled coils depends on all of above. the number of their turns. permeability of core. cross sectional area of their common core. all of above. the number of their turns. permeability of core. cross sectional area of their common core. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of the following statement is correct for divergence of electric and magnetic flux densities? It is zero for the magnetic flux density. Both are zero. These are zero for static densities but non zero for time varying densities. It is zero for the electric flux density. It is zero for the magnetic flux density. Both are zero. These are zero for static densities but non zero for time varying densities. It is zero for the electric flux density. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Plane z = 10 m carries charge 20 C/m2. The electric field intensity at the origin is – 10 uz v/m. – 72 πuz v/m. – 18 πuz v/m. – 360 πuz v/m. – 10 uz v/m. – 72 πuz v/m. – 18 πuz v/m. – 360 πuz v/m. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The magnetic field required to reduce the residual magnetism to zero is called Hysteresis. Saturation magnetism. Retentivity. Coercivity. Hysteresis. Saturation magnetism. Retentivity. Coercivity. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Magnetic circuit with cross sectional area of 20 cm2 is to be operated at 50 Hz from 120 Vrms supply. The number of turns required to active a peak magnetic flux density of 1.8 T in the core flux is 600. 150. 450. 300. 600. 150. 450. 300. ANSWER DOWNLOAD EXAMIANS APP
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