Electromagnetic Field Theory The developed electromagnetic force and or torque in electromechanical energy conversion system act in a direction that tends to decrease the co-energy at constant mmf. to increase the stored energy at constant flux. to decrease the stored energy at constant mmf. to decrease the stored energy at constant flux. to decrease the co-energy at constant mmf. to increase the stored energy at constant flux. to decrease the stored energy at constant mmf. to decrease the stored energy at constant flux. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory What is the value of skin depth as 100 Hz in a material having μr = 1.0 and & σ = 3.60 × 107 s/m 2.4 mm. 4 mm. 10 mm. 8.4 mm. 2.4 mm. 4 mm. 10 mm. 8.4 mm. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory If in a 1 mF capacitor, an instantaneous displacement current of 1 A is to be established in the spaces between its plates then it is possible by applying 106 volts. 106 Amp. 106 Amp/sec. 106 volts/sec. 106 volts. 106 Amp. 106 Amp/sec. 106 volts/sec. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The magnetic vector potential due to a single conductor carrying current is zero. none of tha above. infinite. finite. zero. none of tha above. infinite. finite. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A circular ring is carrying uniformly distributed charge q and a point charge – Q on the axis of the ring. The magnitude of dipole moment of the charge system is (Assume distance between centre of ring and point charge is d and radius of ring R) Q√(R2 + d2). QR. QR2/d. QD. Q√(R2 + d2). QR. QR2/d. QD. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The transmitting antennas for lower frequencies (below 500 kHz) are generally Vertical grounded wire type Parabolic reflector type Any of the above Horizontal suspended wire type Vertical grounded wire type Parabolic reflector type Any of the above Horizontal suspended wire type ANSWER DOWNLOAD EXAMIANS APP
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