Electromagnetic Field Theory When a wave is incident from the more dense into a less dense medium at an angle equal to or exceeding the critical angle, the wave suffers total internal __________ . None of these Transmission Refraction Reflection None of these Transmission Refraction Reflection ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The wave in wave guide has Larger wavelength than in the free space Diminishing wavelength than in the free space Group velocity inversely proportional to wavelength Larger frequency than in the free space Larger wavelength than in the free space Diminishing wavelength than in the free space Group velocity inversely proportional to wavelength Larger frequency than in the free space ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A conductor is rotating with in a magnetic field. At which of the positions do the peak voltages occur? At right angles to the axis of the magnetic field. At an angle of 45° to the axis of the magnetic field. Along the axis of the magnetic field. Anywhere. At right angles to the axis of the magnetic field. At an angle of 45° to the axis of the magnetic field. Along the axis of the magnetic field. Anywhere. 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 300. 150. 600. 450. 300. 150. 600. 450. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A plane wave in a homogeneous medium has E = 50 sin(108t + 2z) uy V/m. What is the direction of wave propagation z direction. – z direction. – y direction. y direction. z direction. – z direction. – y direction. y direction. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Magnetic field intensity at centre of circular coil, of diameter 1 m and carrying a current of 2 A is 1 A/m. 2 A/m. 4 A/m. 8 A/m. 1 A/m. 2 A/m. 4 A/m. 8 A/m. ANSWER DOWNLOAD EXAMIANS APP
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