What is the name of the magnetic squares used to find iron loss
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What is the name of the magnetic squares used to find iron loss?
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- What is the difference between a thermal overload and a magnetic overload? Draw the symbol for each.An iron core has 250 times more flux density than air for the same field intensity. What is the value of its relative permeability?Explain why the proportional relationship between the magnetic field strength of an electromagnet and the flux density inside the iron core eventually break down as the current continues to increase
- True or False: If the core material has a high reluctance, flux will flow freely in a magnetic circuit with a conductor with a high applied voltage.How does the shape of wires carrying current affect the shape of the magnetic field created?How you can find the magnetic field of portion of a wire with the help of Biot & Savart law. ?
- What would be the magnetic flux density (B) value in a 50 cm radius toroid wound on a ferromagnetic core with 100 turns, relative magnetic permeability of μr=1000, carrying 250 Ampere current? (μ0=4π10^−7(H/m))magnetiec core the relative permeability for metal is 5000 have a gap is 0.5 cm and cross secation area of it is 10.5 cm2 and B=0.1T magnetice path length is 50 cm and N=500 turns . calculate the value of flux and the value of currentDiscuss reversed polarity and why is it dangerous to reverse you wire connection.