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 × 106. 2 × 10-8. 2 × 10-6. 2 × 108. 2 × 106. 2 × 10-8. 2 × 10-6. 2 × 108. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In an impedance smith chart, a clockwise movement along a constant resistance circle gives rise to Decrease in the value of reactance No change in the reactance value No change in the impedance value An increase in the value of reactance Decrease in the value of reactance No change in the reactance value No change in the impedance value An increase in the value of reactance ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Cork Screw rule is used to find direction of current. direction of electric field. direction of magnetic field. direction of emf. direction of current. direction of electric field. direction of magnetic field. direction of emf. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory What is the value of magnetic vector potential due to an infinitesimally small current element, evaluated at infinite distance from it? Depends on strength of current element. Unity. Infinity. Zero. Depends on strength of current element. Unity. Infinity. Zero. 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/4π. ω / π. ω. ω/2π. ω/4π. ω / π. ω. ω/2π. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The force required to seperate two surfaces with a contact area measuring 5 cm by 6 cm, when flux density normal to the surface is 0.8 tesla, will be 764 N. 76.4 N. 76400 N. 7640 N. 764 N. 76.4 N. 76400 N. 7640 N. ANSWER DOWNLOAD EXAMIANS APP
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