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 The core of coil length is 200 mm. The inductance of coil is 6 mH. If the core length is doubled, all other quantities, remaining the same, the inductance will be 48 mH. 24 mH. 12 mH. 3 mH. 48 mH. 24 mH. 12 mH. 3 mH. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Magnetic current is composed of which of the following? None of these Both conduction and displacement current. Only displacement current. Only conduction current. None of these Both conduction and displacement current. Only displacement current. Only conduction current. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In case of all flux from the current in coil 1 links with coil 2, the coefficient of coupling will be Zero. 1.0. 2.0. 0.5. Zero. 1.0. 2.0. 0.5. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The frequency of the power wave associated with an electromagnetic wave having field as E = e-z/δ cos(ω - zδ) is given by ω. ω / π. ω/4π. ω/2π. ω. ω / π. ω/4π. ω/2π. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The heating time constant of an electrical machine gives an indication of its cooling. short time rating. overload capacity. rating. cooling. short time rating. overload capacity. rating. ANSWER DOWNLOAD EXAMIANS APP
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