A 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.

A 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.

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter7: Alternating Current, Power Distribution, And Voltage Systems

Section: Chapter Questions

Problem 5RQ

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Maximum power transfer theorem

A resistive load will consume maximum power from a network when the load resistance is equal to the resistance of the network as viewed from the open-circuit terminals, with all energy sources removed leaving only the internal resistances. Physicist Moritz von Jacobi introduced the maximum power transfer theorem in 1940. Therefore, this theorem is also known as Jacobi's law.

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