Electromagnetic Field Theory Mutual inductance between two magnetically coupled coils depends on permeability of core. the number of their turns. all of above. cross sectional area of their common core. permeability of core. the number of their turns. all of above. cross sectional area of their common core. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A wire 1 m long carries a current of 5A and is at an angle of 30o with B = 1.5 wb/m2. Magnitude of force is 2 N. 5 N. 3.75 N. 2.5 N. 2 N. 5 N. 3.75 N. 2.5 N. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of the following statement is correct for divergence of electric and magnetic flux densities? Both are zero. It is zero for the electric flux density. These are zero for static densities but non zero for time varying densities. It is zero for the magnetic flux density. Both are zero. It is zero for the electric flux density. These are zero for static densities but non zero for time varying densities. It is zero for the magnetic flux density. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In order to minimize loss due to hysteresis the magnetic material should have high hysteresis coefficient. small B-H loop area. large coercivity. high resistivity. high hysteresis coefficient. small B-H loop area. large coercivity. high resistivity. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The main disadvantage of the two-hole directional coupler is Narrow bandwidth Poor directivity Low directional coupling High standing wave ratio Narrow bandwidth Poor directivity Low directional coupling High standing wave ratio ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A magnetic material has a total flux B of 80 micro Wb with an mmf of 160 AT. The reluctance in ampere turn per weber is 2 × 10-8. 2 × 108. 2 × 10-6. 2 × 106. 2 × 10-8. 2 × 108. 2 × 10-6. 2 × 106. ANSWER DOWNLOAD EXAMIANS APP
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