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A ferromagnetic core with a relative permeability of 1500 is shown in Figure P1-3. The dimensions are as shown in the diagram, and the depth of the core is 5 cm. The air gaps on the left and right sides of the core are 0.050 and 0.070 cm, respectively. Because of fringing effects, the effective area of the air gaps is 5 percent larger than their physical size. If there are 300 turns in the coil wrapped around the center leg of the core and if the current in the coil is 1.0 A, what is the flux in each of the left, center, and right legs of the core? What is the flux density in each air gap?
A random current is described by the sample space S ={ -4 = i = 12}. A random variable X is defined by (a)Show, by a sketch, the values x into which the values of i are mapped by X. (b)What type of random variable is X
Write an ABEL program for a combinational logic function with five input bits N4-N0 representing an integer between 0 and 31 and two outputs M3 and M5 to indicate if the number is a multiple of 3 or 5, respectively.
The load draws 1.2 pu current at 0.6 puvoltage while drawing 0.5 pu (true) power. If the base volageis 20 kV and the base current is 160 A, calculate the power factor and the ohmic value of the resistance of the load.
Describe the phenomenon of aliasing caused by under sampling. How can aliasing be mitigated What are the advantages of digital communication over analog What is quantization noise How can you reduce it
Calculate the ratio horizon for a 500-ft transmitting antenna and a receiving antenna of 20ft. Calculate the required height increase for the receiving antenna if a 10% increase in the radio horizon were required.
Two equal resistors R connected in series across a voltage source V dissipate power P. What would be the power dissipated in the same resistors when they are connected in parallel across the same voltage source
Write Boolean equations for a BCD decoder, that is, a decoder that has a BCD code word as input and that has outputs y0 through y9. Draw a circuit that uses AND and OR gates and inverters to implement the decoder.
Perform a logical shift right by 4 positions on each of the following unsigned numbers to form a 12-bit result: 100101010000 and 000101001000. In each case, does the result exactly represent division by 16?
The conveyor belt moves relatively slow therefore several seconds pass before the separator switches position. The piston moves two switches (N/A) when it is on position one or on position two. The control system requires a variable exit voltage b..
Air pollution in the Mexico City metropolitan area is among the worst in the world. The concentration of ozone in Mexico City has been measured at 441 ppb (0.441 ppm).Mexico City sits at an altitude of 7400 feet, which means its atmospheric press..
A 220 V, 1500 rpm, 11.6 A (armature current) separately excited motor is controlled by a single phase, full wave SCR converter. The armature resistance of the motor is 2 ohm. The ac source voltage is 230 V (rms) 60 Hz.
In Chapter 3, we showed how to perform multiplication of unsigned integers by addition of partial products. Construct a multiplier for two 16-bit operands containing just one adder that adds successive partial products over successive clock cycles..
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