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 flux. to decrease the stored energy at constant mmf. to decrease the co-energy at constant mmf. to increase the stored energy at constant flux. to decrease the stored energy at constant flux. to decrease the stored energy at constant mmf. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A magnetic vector potential is given by the expression A = (- cos x) (cos y) uz. The flux density at the origin is – uy. 0. – 2 ux. 2 ux. – uy. 0. – 2 ux. 2 ux. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of this statement is not characteristic of a static magnetic field it is conservative. magnetic flux lines are always closed. it is solenoidal. it has no sink or sources. it is conservative. magnetic flux lines are always closed. it is solenoidal. it has no sink or sources. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In a dielectric material an applied field in x direction Ex = 5 v/m gives a polarization of px = 3/10π ux nc/m2. The susceptibility of the material is Infinity. Zero. 4.32. 2.16. Infinity. Zero. 4.32. 2.16. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Find H for centre of solenoid having finite length d = 1 unit where N = no of turns = 500, I = 2 A. 100. 500. None of these. 1000. 100. 500. None of these. 1000. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An insulated metal sphere of 20 cm diameter is charged by rubbing with charges 2 × 10-8 C. Potential developed will be 1800 V. 0 V. 900 V. 200 V. 1800 V. 0 V. 900 V. 200 V. ANSWER DOWNLOAD EXAMIANS APP
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