Electromagnetic Field Theory Ohm’s law in point from field theory can be expressed as V = IR. R = ρ × ( l / A). J = E / σ. J = σE. V = IR. R = ρ × ( l / A). J = E / σ. J = σE. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An open wire transmission line having a characteristic impedance of 600 ohms is terminated by a resistive load of 900 O. The standing wave ratio will be 1.5 4.5 2.5 3.5 1.5 4.5 2.5 3.5 ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A waveguide operated below cut off frequency can be used as Phase shifter An attenuator An isolator None Phase shifter An attenuator An isolator None 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 A conductor of length 1 metre moves at right angles to magnetic field of flux density 1 Wb/m2 with a velocity of 25 m/s. The induced emf in the conductor will be 50 V. 75 V. 25 V. 100 V. 50 V. 75 V. 25 V. 100 V. 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
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