Electromagnetic Field Theory In case of antenna the ratio of the power radiated in the desired direction to the power radiated in the opposite direction is known as Front to back ratio None of these Transmission efficiency Loss coefficient Front to back ratio None of these Transmission efficiency Loss coefficient ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In a dielectric material an applied field in x direction Ex = 5 v/m gives a polarization of px = 3/10π ux nc/m2. The susceptibility of the material is 2.16. Infinity. 4.32. Zero. 2.16. Infinity. 4.32. Zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Find H for centre of solenoid having finite length d = 1 unit where N = no of turns = 500, I = 2 A. 500. None of these. 100. 1000. 500. None of these. 100. 1000. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The hysteresis loop of a magnetic material has an area of 5 cm2 with the scale given as 1 cm = 2 AT and 1 cm = 50 mwb At 50 Hz; the total hysteresis loss is 50 W. 20 W. 15 W. 25 W. 50 W. 20 W. 15 W. 25 W. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of following is the unit of inductance? Ampere turns. Milli- henry. Webers / m. Ohm. Ampere turns. Milli- henry. Webers / m. Ohm. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory According to Coulomb’s law, the force of attraction or repulsion, between to electrical charges is directly proportional to the distance between them. inversely proportional to the distance between them. inversely proportional to the square of the distance between them. directly proportional to the square of the distance between them. directly proportional to the distance between them. inversely proportional to the distance between them. inversely proportional to the square of the distance between them. directly proportional to the square of the distance between them. ANSWER DOWNLOAD EXAMIANS APP
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