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3D circular waveguide in cylindrical coordinates. Create a simulation space for a circular waveguide in 3D cylindrical coordinates. Let the radius of the waveguide be 2.7 cm, and design it for a frequency of 10 GHz. Excite the waveguide at one end with a hard source at a frequency of 10 GHz, where the source field is defined along a line through the cross-section of the waveguide. Plot a snapshot of the field patterns a few wavelengths down the waveguide; what modes exist in this waveguide? Repeat for frequencies of 8 GHz and 12 GHz and compare the results.
Electricity is distributed from electrical substations to neighborhoods at 15,000 Volts, to a transformer on utility poles near homes, where is it stepped down to 120 Volts for household use.
Suppose that the data collected from a sensor is found to contain an objectionable 60-Hz ac component. What potential causes for this interference would you look for? What are potential solutions for each cause of the interference?
What is the potential of the sphere's surface relative to infinity?
The resistance of 8 copper wire is 0.64 W per 1000 feet and with a certain type of insulation it can safely carry 40 A without overheating. If the wire is carrying the maximum current. How much power is dissipated in the conductor.
The disk uniformly rotates in air about its axis (perpendicular to the disk) with an angular velocity . Find the magnetic flux density vector at an arbitrary point along the axis of rotation. Assume that the charge distribution over the disk remai..
Determine the time dial and instantaneous setting of the ground relay element associated with the main circuit breaker.
he operation of the system requires that, before any change of motion direction, the motor must be in a full stop by push the "STOP" button Assuming bother timer TD1 and TD2 have the same preset time of 1 minute
a 4A current source is in parallel with a 30 ohme resistance, a 15 ohme resistance, and an unknown resistance, Rx. The current through the unknown resistance is 1A. Determine the value of Rx.
Suppose you are looking at two loops in the plane of the page as shown. When the switch is thrown closed in the left hand coil, what is:
The input resistance of the recorder is unknown andlikely to be variable, but it is greater than 10kΩ. Adeflection of 1 cm per milliampere of cell current with anaccuracy of about ±3 percent is desired. What type of ideal amplifier is best suited ..
a three phase motor operates at 70% efficiency, out of a 60Hz 480V balanced system of voltages. the motor takes a line current of 70A at a lagging power factor 65%. if the motor is rotating at 3500 rpm, and neglecting fraction, what is the torque ..
Calculate the new speed and armature current if an external armature resistance of value 5Ω is inserted in the armature circuit. Neglect armature reaction and saturation.
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