Explain the term parasitic capacitance its cause and its effect on the circuit.
Category: Engineering
Explain the function of a 2 x 2 crossbar switch where the inputs are Xl and X2, outputs are Y1 and Y2 and the selection switch is S.
Show the construction of this crossbar using 2 input multiplexers.
The logic blocks within FPGAs use look up tables which are implemented and controlled using multiplexers.
With the aid of a suitable diagram show the structure and describe the operation of a 2 input look up table and how this can return sored values with a given input.
Explain with the use of an appropriate diagram the structure of an FPGA
Describe the function of the logic blocks and the interconnection switches and why an FPGA would be used instead of an SPLD or a CPLD.
A 3-bus system: Following are the ratings of the various components.
Draw the impedance diagram showing all components’ impedances computed based on 50 MVA and 13.8 kV as base quantities in G1.
Two forces P1=15 kN and P2=18 kN are applied as shown to the end A of bar AB, which is welded to a cylindrical member BD of radius c 20 mm.
Knowing that the distance from A to the axis of the member BD is a 50 mm, and assuming that all stresses remain below the proportional limit of the material, determine the norma and shear stresses at point K located at a distance b 60 mm from end B.
A 230 kV, 100 km, 60 Hz, nominal current of a three-phase air transmission line is 900 A / phase.
A series impedance z = 0.088 + j0.465 Ω/km and a shunt admittance y = j3.524 μS/km.
