Electromagnetic Field Theory A waveguide operated below cut off frequency can be used as An isolator None Phase shifter An attenuator An isolator None Phase shifter An attenuator ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory MUF is depend upon Height of ionospheric layer 11 year sun spot cycle Received frequency by receiver Electron density of the ionospheric layer Height of ionospheric layer 11 year sun spot cycle Received frequency by receiver Electron density of the ionospheric layer 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 1. 4. 8. 2. 1. 4. 8. 2. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of following can induce the maximum induced voltage ? 1 amp 1 Hz. 1 amp dc. 20 amp dc. 1 amp 100 Hz. 1 amp 1 Hz. 1 amp dc. 20 amp dc. 1 amp 100 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory For a line characteristic impedance zo terminated is load zo/3, the reflection coefficient is – ½. 2/3. – 1/3. 1/3. – ½. 2/3. – 1/3. 1/3. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In order to minimize loss due to hysteresis the magnetic material should have small B-H loop area. high hysteresis coefficient. high resistivity. large coercivity. small B-H loop area. high hysteresis coefficient. high resistivity. large coercivity. ANSWER DOWNLOAD EXAMIANS APP
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