Electromagnetic Field Theory Two coils are coupled in such a way that the mutual inductance between them is 20 mH. If the inductances of the coils are 40 mH and 50 mH respectively, the coefficient of coupling is 0.577. 0.447. 0.477. 0.01. 0.577. 0.447. 0.477. 0.01. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The magnitude of force acting on a current carrying conductor placed in a magnetic field is independent of cross-sectional area of conductor. current flowing through the conductor. length of conductor. flux density. cross-sectional area of conductor. current flowing through the conductor. length of conductor. flux density. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In order to minimize loss due to hysteresis the magnetic material should have high resistivity. large coercivity. high hysteresis coefficient. small B-H loop area. high resistivity. large coercivity. high hysteresis coefficient. small B-H loop area. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Gradient of scalar field is expressed as Circulation of a vector field per unit area as the area tends to zero. Outward flux of a vector field per unit volume as the volume about the point tends to zero. Maximum rate of increase of scalar function at a point. Gradient of divergence of a vector field minus the curl of the vector field. Circulation of a vector field per unit area as the area tends to zero. Outward flux of a vector field per unit volume as the volume about the point tends to zero. Maximum rate of increase of scalar function at a point. Gradient of divergence of a vector field minus the curl of the vector field. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Electric field inside a hollow metallic charged sphere is decreasing towards centre. increasing towards centre. zero. none of above. decreasing towards centre. increasing towards centre. zero. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A conductor of length L has current I passing through it, when it is placed parallel to strong magnetic field. The force experienced by the conductor will be BL2I. zero. BIL. BI2L. BL2I. zero. BIL. BI2L. ANSWER DOWNLOAD EXAMIANS APP
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