Physics, 30.05.2020 20:05 betsylancer8071
A long, hollow cylinder with inner radius R1 and outer radius R2 carries current along its length. The current is uniformly distributed over the cross-sectional area of the cylinder and has current density J. Find the magnetic-field magnitude B as a function of the distance r from the conductor axis for points inside the hollow interior (r
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Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.
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A long, hollow cylinder with inner radius R1 and outer radius R2 carries current along its length. T...
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