where am I going wrong?Īnd the flux through the left leg A I think should be equal to the flux density multiplied by the cross sectional area. I personally think the flux through the center has to be infinite (which is wrong) because the reluctance must be 0. I honestly don't know what I'm doing with part b. There are air gaps in the left and right legs of 2mm and 1mm, respectively.Ī) Determine the voltage that will produce a flux density of 0.75 T in the right leg C, which contains the 1-mm air gap.ī) Find the magnetic flux in the other two legs of the core. The magnetic core has a 5 x 5 cm uniform cross-sectional area. The center leg has a coil wound around it with 200 turns and the resistance in that coil is 2.5 ohms. Second, one must take note if the measurement is in an invaded zone with two phases and, hence, the permeability determined is an effective permeability, not an absolute permeability. Boundary Value Conditions for P g and P b. First, the pressure measurements are made on the borehole wall that has suffered possible drilling damage and pore throat plugging from mud solids. Permeabilities for Drilling Intrusions Through the Repository. Probabilities for Biodegradation of Different Organic Materials (WASAREA:PROBDEG) in the CRA-2014 PA. Let's say you have a magnetic core with infinitely high permeability (like in an "ideal" transformer") and it has three legs (leg A, left, B, center, and C, right). Models for Relative Permeability and Capillary Pressure in Two-Phase Flow. If someone could help explain it to me, you don't even need to solve it for me or anything. a measure of the change in magnetic induction produced when a magnetic material replaces air, expressed as a. Relative permeability to oil (K ro ), gas (K rg ), or water (K rw) is the ratio of effective permeability of oil, gas, or water to absolute permeability. I had this question on my exam and I got part a correctly, but part b incorrectly, and I honestly don't understand it.
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