Electromagnetic Field Theory If the static magnetic flux density is B, then Curl of B = J. Curl of B = 0. Divergence of B = 0. Divergence of B = J. Curl of B = J. Curl of B = 0. Divergence of B = 0. Divergence of B = J. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The force on a charge moving with velocity v under the influence of electric and magnetic fields is given by which one of the following q(E + B × V). q(H + V × E). q(E +V × H). q(E + V × B). q(E + B × V). q(H + V × E). q(E +V × H). q(E + V × B). ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of this statement is not characteristic of a static magnetic field it has no sink or sources. it is solenoidal. magnetic flux lines are always closed. it is conservative. it has no sink or sources. it is solenoidal. magnetic flux lines are always closed. it is conservative. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which is the major factor for determining whether a medium is free space, lossless dielectric or a good conductor Reflector coefficient. Loss tangent. Constitutive parameters. Attenuation constant. Reflector coefficient. Loss tangent. Constitutive parameters. Attenuation constant. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Magnetic circuit with cross sectional area of 20 cm2 is to be operated at 50 Hz from 120 Vrms supply. The number of turns required to active a peak magnetic flux density of 1.8 T in the core flux is 150. 600. 300. 450. 150. 600. 300. 450. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A rectangular loop in the x – z plane bounded by the lines x = 0, x = a, z = 0 and z = b is in a time varying magnetic field is given by B = B0 cosωt + ay. Where B0 is constant, ω is angular frequency and ay unit vector in the y direction. Now the emf induced in the loop is given by ab Bo cosω t. abω Bo sinω t. Bo ω sinω t. Zero. ab Bo cosω t. abω Bo sinω t. Bo ω sinω t. Zero. ANSWER DOWNLOAD EXAMIANS APP
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