Electromagnetic Field Theory The magnetic field required to reduce the residual magnetism to zero is called Saturation magnetism. Retentivity. Hysteresis. Coercivity. Saturation magnetism. Retentivity. Hysteresis. Coercivity. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A square corner reflector is used in which of the following? Point-to-point communication Radio astronomy All of these TV broadcast Point-to-point communication Radio astronomy All of these TV broadcast ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A pure inductor when connected across 220 V, 50 Hz supply consumes 100 W. From the above statement it can be concluded that the inductor has ferrite core. the above statement is false. the inductor is made of thin wire. the inductor is non linear. the inductor has ferrite core. the above statement is false. the inductor is made of thin wire. the inductor is non linear. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Conductor is static and the field is varying then emf will be induced. This principle is called none of these dynamically induced emf. virtually induced emf. static induced emf. none of these dynamically induced emf. virtually induced emf. static induced emf. 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/d. PR/d2. Zero. PR 2/d3. PR/d. PR/d2. Zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The main disadvantage of the two-hole directional coupler is Narrow bandwidth Low directional coupling High standing wave ratio Poor directivity Narrow bandwidth Low directional coupling High standing wave ratio Poor directivity ANSWER DOWNLOAD EXAMIANS APP
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