Electromagnetic Field Theory Voltage applied across a dielectric produces an electrostatic field 50 times greater than air. The dielectric constant of the dielectric will be 10. 20. 50. 5. 10. 20. 50. 5. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An electric dipole of moment P is placed in front of a ground sphere. The change induced on the surface of the sphere is (Assume radius of sphere = R and distance from dipole to centre of sphere = d) PR/d2. Zero. PR 2/d3. PR/d. PR/d2. Zero. PR 2/d3. PR/d. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The effective reactance of an inductive coil decreases because of stray capacitance as the frequency increases. none of these. increases because of stray capacitance as the frequency increases. remains same irrespective of the frequency. decreases because of stray capacitance as the frequency increases. none of these. increases because of stray capacitance as the frequency increases. remains same irrespective of the frequency. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The hysteresis loop of a magnetic material has an area of 5 cm2 with the scale given as 1 cm = 2 AT and 1 cm = 50 mwb At 50 Hz; the total hysteresis loss is 25 W. 20 W. 15 W. 50 W. 25 W. 20 W. 15 W. 50 W. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A conductor of length L has current I passing through it, when it is placed parallel to strong magnetic field. The force experienced by the conductor will be BI2L. BIL. BL2I. zero. BI2L. BIL. BL2I. zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The field at any point on the axis of a current carrying coil will be parallel to axis. zero. perpendicular to the axis. at angle of 45° with the axis. parallel to axis. zero. perpendicular to the axis. at angle of 45° with the axis. ANSWER DOWNLOAD EXAMIANS APP
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