Electromagnetic Field Theory Parabolic and lens antenna used at Low frequency High frequency Medium frequency Microwave frequency Low frequency High frequency Medium frequency Microwave frequency ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Tropospheric scatter is used with frequencies in the VLF HF UHF VHF VLF HF UHF VHF ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The main purpose of choke is to pass low frequencies. none of above. to block low frequencies. to pass high frequencies. to pass low frequencies. none of above. to block low frequencies. to pass high frequencies. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In an iron core coil the iron core is removed so that the coil becomes an air core coil. The inductance of the coil will decrease. increase. initially increase and then decrease. remain the same. decrease. increase. initially increase and then decrease. remain the same. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A conductor of length 100 cm moves at right angles to a magnetic field of flux density 1.5 Wb/m2 with a velocity of 50 m/s. The induced emf in the conductor will be 75 V. 150 V. 50 V. 37.5 V. 75 V. 150 V. 50 V. 37.5 V. 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
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