Electromagnetic Field Theory The frequency of the power wave associated with an electromagnetic wave having field as E = e-z/δ cos(ω - zδ) is given by ω. ω / π. ω/4π. ω/2π. ω. ω / π. ω/4π. ω/2π. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A square corner reflector is used in Tv broadcast All of these Radio astronomy Point to point communication Tv broadcast All of these Radio astronomy Point to point communication 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 20 W. 50 W. 15 W. 25 W. 20 W. 50 W. 15 W. 25 W. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Magnetic circuit with cross sectional area of 20 cm2 is to be operated at 50 Hz from 120 Vrms supply. The number of turns required to active a peak magnetic flux density of 1.8 T in the core flux is 450. 600. 300. 150. 450. 600. 300. 150. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory ________ at a point is defined as the force experienced per unit positive charge at a point placed in the electric field. None of these Electric flux. Electric intensity. Magnetic flux density. None of these Electric flux. Electric intensity. Magnetic flux density. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The heating time constant of an electrical machine gives an indication of its overload capacity. rating. short time rating. cooling. overload capacity. rating. short time rating. cooling. ANSWER DOWNLOAD EXAMIANS APP
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