Electromagnetic Field Theory A waveguide operated below cut off frequency can be used as None An attenuator Phase shifter An isolator None An attenuator Phase shifter An isolator ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory As a result of reflection from a plane conducting wall, electromagnetic waves acquire an apparent velocity greater than the velocity of light in space. This is called the velocity of propagation. phase velocity. normal velocity. group velocity. velocity of propagation. phase velocity. normal velocity. group velocity. 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 150. 300. 600. 450. 150. 300. 600. 450. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An infinite non conducting sheet of charge has σ of 10-7 c/m3. Equipotential surface for a potential of 10 volts is. 0.88 mm. 1.77 mm. 0. 1.32 mm. 0.88 mm. 1.77 mm. 0. 1.32 mm. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory It is best to use for coupling a coaxial line to a parallel wire transmission line. Tee Slotted line Balun Directional Coupler Tee Slotted line Balun Directional Coupler ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A magnetic field B = 5 × 10-2 uz T exerts a force on 0.02 m conductor along the x-axis. The conductor carried a current of 5 mA in the – ux direction. What force must be applied to the conductor to hold it in position 5 × 10-5 uz N. 5 × 10-5 uy N. - 5 × 10-5 uy N. 5 × 10-5 ux N. 5 × 10-5 uz N. 5 × 10-5 uy N. - 5 × 10-5 uy N. 5 × 10-5 ux N. ANSWER DOWNLOAD EXAMIANS APP
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