Electromagnetic Field Theory Whenever the magnetic flux changes with respect to an electric conductor or a coil, an EMF is induced in the conductor is Faraday’s second law first law fourth law third law second law first law fourth law third law ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The critical frequency of ‘F’ layer is greater than 30 MHz. False True False True ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two coils are coupled in such a way that the mutual inductance between them is 20 mH. If the inductances of the coils are 40 mH and 50 mH respectively, the coefficient of coupling is 0.01. 0.477. 0.447. 0.577. 0.01. 0.477. 0.447. 0.577. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In microwave communication links, when fading due to rain attenuation occurs then technique adopted for solving the problem would include Polarization shifting and code diversity Amplitude timing and phase correction Path diversity and frequency diversity Antenna replacement and feed correction Polarization shifting and code diversity Amplitude timing and phase correction Path diversity and frequency diversity Antenna replacement and feed correction ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Fleming's right hand rule may be applied to an electric generator to find out the direction of rotor rotation. induced emf. None of these magnetic field. rotor rotation. induced emf. None of these magnetic field. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The main disadvantage of the two-hole directional coupler is High standing wave ratio Poor directivity Low directional coupling Narrow bandwidth High standing wave ratio Poor directivity Low directional coupling Narrow bandwidth ANSWER DOWNLOAD EXAMIANS APP
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