Electromagnetic Field Theory A square corner reflector is used in which of the following? All of these Point-to-point communication Radio astronomy TV broadcast All of these Point-to-point communication Radio astronomy TV broadcast ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A wire carrying current is bent in the form of a circular loop. Then the magnetic field around each portion of the wire will be perpendicular to the circumference of the wire. parallel to half portion and perpendicular for the other half. none of above. parallel to the plane of the wire. perpendicular to the circumference of the wire. parallel to half portion and perpendicular for the other half. none of above. parallel to the plane of the wire. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of the following will increase the antenna radiation efficiency? Providing insulation on conductor Any of the above Use of larger section of conductor Top loading of antenna Providing insulation on conductor Any of the above Use of larger section of conductor Top loading of antenna ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The lagging of flux density behind the applied magnetising force is known as flux. hysteresis. All of these permeance. flux. hysteresis. All of these permeance. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A plane wave magnetic field is represented by Bx = cos(y – ct). The electric and magnetic fields will be zero in the direction Ex = Ey = 0, By = Bz = 0. None of these. Ex = Ey = 0, Bx = By = 0. Ey = Ez = 0, By = Bz = 0. Ex = Ey = 0, By = Bz = 0. None of these. Ex = Ey = 0, Bx = By = 0. Ey = Ez = 0, By = Bz = 0. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The transmitting antennas for lower frequencies (below 500 kHz) are generally Any of the above Horizontal suspended wire type Parabolic reflector type Vertical grounded wire type Any of the above Horizontal suspended wire type Parabolic reflector type Vertical grounded wire type ANSWER DOWNLOAD EXAMIANS APP
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