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A sectional view of a cylindrical iron-clad plunger magnet is shown in Figure P12.1.8. The small air gap between the sides of the plunger and the iron shell is uniform and 0.25 mm long. Neglect leakage and fringing, and consider the iron to be infinitely permeable. The coil has 1000 turns and carries a direct current of 3 A. Compute the pull on the plunger for g = 1.25 cm.
Taking the stator resistance to be 2.0 Ω, friction and wind age loss to be 7 W, and assuming Xl1 = X'l2, determine the parameters of the double revolving-field equivalent circuit.
In terms of heat treatment and the development of microstructure, what are two major limitations of the iron-iron carbide phase diagram?
Develop a series of design graphs that can be used to demonstrate acceptable combinations of tubes dimensions
Operation of a modern telephone handset, In a modern telephone handset, the microphone uses a piezo-electric crystal and the earpiece is a miniature loud speaker using a moving coil and a permanent magnet.
Crude dichlorobenzene is pumped from a storage tank to a distillation column. The tank is blanketed with nitrogen and the pressure above the liquid surface is held constant at 0.1 bar gauge pressure. The minimum depth of liquid in the tank is 1 m.
Mass transfer coefficient from a free water surface to an adjacent moving air stream has been found to be 0.015 kg/m2-s. Estimate the rate of evaporation from a surface of 1 m2 at a temperature of 28 oc into an air..
Table: contains six-month average price data for styrene and its feedstock's ethylene and benzene for South Korea over the period Jan. 1999 to Dec. 2010. Calculate the gross margin
Estimate the number-average molecular weight that is required to give a tensile strength of195MPa.
What is the magnitude of the signal, in volts, that you could expect from the microphone? Assume that we get a maximum signal when the flux varies from 0 to the value of Φ calculated in Part B. (Assume that sound has a frequency of order 500Hz.)Volta..
Compound Y has a solubility of 20.0g/100mL in ether.What mass of compound of Y would be removed from a solution of 1.8g of Y in 100mL of water by a single extraction with 100mL of ether?
Experimental tests have been carried out on this equipment, and the results for the slurry mixture used can be expressed as follows for any one pressure drop:
The blower-motor combination used at the gas inlet has an overall efficiency of 50 percent. Estimate the power cost per 8000 operating hours for forcing the air through the packing if the cost of power is $0.08 per kilowatt hour.
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