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/d. PR/d2. Zero. PR 2/d3. PR/d. PR/d2. Zero. PR 2/d3. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The static electric field in a conductor is None of these Unity Infinity Zero None of these Unity Infinity Zero ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory If the static magnetic flux density is B, then Curl of B = 0. Curl of B = J. Divergence of B = J. Divergence of B = 0. Curl of B = 0. Curl of B = J. Divergence of B = J. Divergence of B = 0. 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/2π. ω/4π. ω. ω / π. ω/2π. ω/4π. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A waveguide operated below cut off frequency can be used as Phase shifter None An attenuator An isolator Phase shifter None An attenuator An isolator ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Find the strength of the magnetic field when a 2m long conductor is moving with a velocity 4m/s inducing an emf of 20V. 0.5T. 2.5T. 10T. 5T. 0.5T. 2.5T. 10T. 5T. ANSWER DOWNLOAD EXAMIANS APP
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