Electromagnetic Field Theory A magnetic circuit requires 800 AT to produce a certain quantity of flux in a magnetic circuit. If its excitation coil has 100 turns and 5 Ohm resistance, the voltage to be applied in exciting coil is 60 V. 80 V. 8 V. 40 V. 60 V. 80 V. 8 V. 40 V. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of the following impedance inversion is obtained? A half wave line Balun transformer A quarter wave line Short-circuited stub A half wave line Balun transformer A quarter wave line Short-circuited stub ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The main disadvantage of the two-hole directional coupler is High standing wave ratio Narrow bandwidth Poor directivity Low directional coupling High standing wave ratio Narrow bandwidth Poor directivity Low directional coupling ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The magnitude of the induced emf in a conductor depends upon on the rate of change of flux linkage. amount of flux cut. flux density of the magnetic field. amount of flux linkage. rate of change of flux linkage. amount of flux cut. flux density of the magnetic field. amount of flux linkage. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Ohm’s law in point from field theory can be expressed as V = IR. J = E / σ. J = σE. R = ρ × ( l / A). V = IR. J = E / σ. J = σE. R = ρ × ( l / A). 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. Constitutive parameters. Loss tangent. Attenuation constant. Reflector coefficient. Constitutive parameters. Loss tangent. Attenuation constant. ANSWER DOWNLOAD EXAMIANS APP
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