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If we want to receive an FM station that broadcast on frequency = 100 MHz and we have to build a tunning circuit of LC utilizing a capacitor of 10pF. Design an inductor L to make tune by using your plastic Pin as a core for widing. Assume your pin diameter is 1 cm and wire of 0.8 mm diameter.
use L = μ0N^2r^2/2ρ0n^2 = N^2 l^2
Assume the factory described in the previous problem is fed from a line having an impedance of 0.02 + j0.16-ohm. The voltage at the factory is maintained at 480 V(rms). Find the average power loss in the line before and after the load is added.
What is the fundamental frequency of the spectrum of the square wave? What is the magnitude of the fundamental frequency component of the spectrum of the square wave?
A DC motor has the following characteristics. Rating: 35kW Operation: 350 V, draws 90A, operates at a speed of 1100 rev/min when supplying full load. Shunt: Field resistance is 150 Ohm and armature resistance is 0.5 Ohm
A 3-phase motor has coils wchich can be configured in a Y load. If each load phase has an impedance of 8+j6 ohms determine the power taken by the motor when supplied by a balanced 3-phase voltage source of 440V line to line.
A windmill has a diameter of 3 meters. It converts wind enegry to electrical enegy with a efficiency of 40% of the theoretical maxium for windmills. What is the eelctric power output at a wind velcity of 15 miles per hour.
Write a program to count the number of elements in an array whose bits 3, 4, and 7 are zeros. The array has N 8-bit elements and is stored in memory locations starting from $1000
If the amplifier is fed from a voltage source Vsig having a resistance Rsig = 1kΩ, find the transfer funtion Vo/Vsig as a function of the complex-frequency variable s and hence the 3-dB frequency fH and the unity-gain frequency ft.
design and implement an access control circuit for my research lab. There are two inputs - a key card swipe on the door that produces an ID in the 0.7 range, and a day/night sensor that is 1 during the day, and 0 at night.
The two wattmeters read 111 KW and 58 kW, respectively. Calculate the approximate power output in HP, losses and the corresponding power factor of the induction motor. There is an ammeter connected in the line "b".
The terminals of an electrical device are labeled a and b. If vab = 10V , how much energy is exchanged when a charge of 3 C moves through the device from a to b. Is the energy delivered to the device (i.e., device dissipating or storing energy).
Write a 68000 assembly language subroutine, ROTMEM, which rotates the elements (words-size) of an array stored at location point to by (A0). The depth of the array is stored as the first element.
Design a controller with a 4-bit state register that gets synchronously initialized to state 1010 when an input reset is set to 1.
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