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- You are working as an electrician in a large steel manufacturing plant, and you are in the process of doing preventive maintenance on a large DC generator. You have megged both the series and shunt field windings and found that each has over 10 M to ground. Your ohmmeter, however, indicates a resistance of 1.5 across terminals S1andS2. The ohmmeter indicates a resistance of 225 between terminals F1andF2. Are these readings normal for this type machine, or is there a likely problem? Explain your answer.An iron core 0.4m long and 5 cm2. In cross section, is wound with 300 turns. When a current of 0.5 A flows in the coil, how much is the inductance of the coil. Assume the core has a permeability of 2500. Ans 350mHPhysical properties that affect inductance are: 15) ________A) area of the coil, permeability, and amount of current flow.B) length of coil, resistance of the coil's wire, and number of turns.C) number of turns, voltage applied, and core material.D) core material, number of turns, length of the core, and cross-sectional area of the core.
- 1... Why do we use round-shaped coils (I.e., Round shaped turns in the coils) in both the primary and secondary circuits [If those coils were not round-shaped, what would be the problem]? Must show the draw figures 2.... Write down major differences between conducting and displacement current densities with proper figures.HEAT TRANSFER : INDUCTION COIL I want to know what temperature the stainless steel cylinder will have inside. It's a heat transfer problem. current: 31 A voltage 42V cylinder material: stainless steel Outer radius: 0.55 Inner Radius :0.7 Thermal conductivity: 15w/mk Induction coil measurement: It has 1/8” OD and 0.03” wall thickness and will wrap around the cylinder and will have the same height as the cylinder. I want to know temperature of the cylinder RiA mild street ring having across sectional area of 600 sq mm and a mean circumference of 500 mm has a coil of 300 turns uniformly around it. Calculate the reactance at the ring and the current required to produce a flux of 800 uwb in the ring. If the relative permeability is 400.
- If a coil of wire has a resistance of 20ohms at 40oC and 20 at 80oC,what will be the resistance of the coil at 0oC. oC = degrees celciusHigh Voltage Technique For an open air test in a high voltage laboratory, a voltage of 500 kV will be taken out through a 4m x 6m door. Considering that this work will be done with a coaxial cylindrical electrode system, calculate the inner cylinder radius according to the case that the electric field strength on the inner cylinder surface is 10 kV/cm.I need it ASAP A concentric cable has a core diameter of 10 mm. The inductance of the cable is 4 × 10−7 H/m. Ignoring inductance due to internal linkages, determine the diameter of the sheath. Assume that the relative permeability is 1.
- A solenoid coil needs to be manufactured which produces an inductance of at least 2000 Gauss (in SI system = Tesla) when a 10mA current flows through the conductor. Due to space limitations, the coil should be composed of 10 turns over a 1cm length. Do the required calculations and select a core material for the coil from the table below. Your answer will be given over the following series of questions. A. H = 0.12566 oersted B. H = 12.56637 oersted C. H = 1.25664 The relative permeability of the manufactured solenoid from the previous question is: A. μr = 15.916 B. μr = 15915.964 C. μr = 1.2665e10 D. None of the mentioned/ Geen van die genoemdeA solenoid coil needs to be manufactured which produces an inductance of at least 2000 Gauss (in SI system = Tesla) when a 10mA current flows through the conductor. Due to space limitations, the coil should be composed of 10 turns over a 1cm length. Do the required calculations and select a core material for the coil from the table below. Your answer will be given over the following series of questions. A. H = 0.12566 oersted B. H = 12.56637 oersted C. H = 1.25664Show complete solution. 37. Two identical coils of 400 turns each lie in parallel planes and produced a flux of 0.04 Wb. If a current of 8 A is flowing in one coll, solve the mutual inductance between the coils. A. 2 H B. 1.8 H C. 1.5 H D. 2.5 H
