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Reconsider Problem 11.2.3. Calculate the coil inductance L and the total stored magnetic energy before and after the air gap is cut.
Problem 11.2.3permeability of 2500. The magnetic flux density in the core is 1.25 T measured at the mean diameter of the toroid.
(a) Find the current that must be supplied to the coil.
(b) Calculate the magnetic flux in the core.
(c) Now suppose a 10-mm air gap is cut across the toroid. Determine the current that must be supplied to the coil to produce the same value of magnetic flux density as in part (a). You may neglect leakage and fringing.
An effluent disposal contractor is considering entering the recycled field. At present he incinerates an organic waste containing recoverable solvents and dumps the aqueous based effluent containing acids and metals.
the equilibrium constant K for the reaction - what is the concentration of SO3 at equilibrium?
A scheme for concurrently heating separate water and air streams involves passing them through and over an array of tubes, respectively, while the tube wall is heated electrically. To enhance gas-side heat transfer, annular fins of rectangular pro..
At an ice cream there there are 10 flavors of ice cream, four toppings, three types of sprinkles, and either whipped cream or chocolate sauce. How many combinations of ice cream are there?
How much water and urea (the main waste product) pass into the dialysate if the entering concentration of urea is 2.30 mg/mL and the exit concentration of urea is 1.70mg/ mL? If the dialyzing fliud flows into the unit at the rate of 1500 mL/ min, wha..
Figure shows a simple heat-exchange system. A feed stream is heated by heat exchange in a plate exchanger and then further heated in a steam heater before entering a fixed-bed reactor. The product from the reactor is cooled in the plate exchanger ..
Derive the following equation for the optimum outside diameter of insulation on a wire for maximum heat loss:
Acetylene (C2H2) and butane (C4H10) are gaseous fuels with enthalpies of combustion of 49.9 kJ/g and 49.5 kJ/g, respectively. Compare the energy available from the combustion of a given volume of acetylene to the combustion energy from the same ..
Select a passenger car and calculate the efficiency of the vehicle in converting chemical energy from combustion into kinetic energy.
Find the value of Ia for which the generator efficiency is a maximum.
Solid NH4NO3 (ammonium nitrate) decomposes on heating to 400°C, forming N2O gas and water vapor, H2O. (a)Write a balanced chemical equation
Give you four samples and tell you they are lysine (an amino acid), lactose (a disaccharide), insulin ( a protein hormone), and RNA. The sample are in test tubes marked 1,2,3 and 4, but you don't know which compound is in which tube. you need to iden..
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