Electromagnetic Field Theory A pure inductor is connected across a voltage source. Find the active power drawn by the inductor? None of these either 1 or 2 maximum 0 None of these either 1 or 2 maximum 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 / π. ω/2π. ω/4π. ω. ω / π. ω/2π. ω/4π. ω. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In a lossless medium the intrinsic impedance η = 60π and μr = 1. The relative dielectric constant εr shall be 4. 2. 8. 1. 4. 2. 8. 1. 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 abω Bo sinω t. Bo ω sinω t. Zero. ab Bo cosω t. abω Bo sinω t. Bo ω sinω t. Zero. ab Bo cosω t. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A copper disc is rotated rapidly below a freely suspended magnetic needle. The magnetic needle starts rotating with velocity less than that of disc and in the same direction. equal to that of disc and in the opposite direction. less than that of disc but in opposite direction. equal to that of disc and in the same direction. less than that of disc and in the same direction. equal to that of disc and in the opposite direction. less than that of disc but in opposite direction. equal to that of disc and in the same direction. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The magnitude of force acting on a current carrying conductor placed in a magnetic field is independent of current flowing through the conductor. cross-sectional area of conductor. length of conductor. flux density. current flowing through the conductor. cross-sectional area of conductor. length of conductor. flux density. ANSWER DOWNLOAD EXAMIANS APP
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