A long solenoid magnet with radius R= 10cm designed for a fusion reactor is wound with super conducting niobium-tin (Nb3Sn) wire at a density of 180 turns per meter. The wire carries an a current of 30 kA. At a location far from either end, what is the magnetic field strength Bin in the solenoid? What is the magnetic field strength Bout outside the solenoid? The windings are themselves are subjected to a field 1/2 (Bin+Bout). What is the outward pressure on the windings?

A long solenoid magnet with radius R= 10cm designed for a fusion reactor is wound with super conducting niobium-tin (Nb3Sn) wire at a density of 180 turns per meter. The wire carries an a current of 30 kA. At a location far from either end, what is the magnetic field strength Bin in the solenoid? What is the magnetic field strength Bout outside the solenoid? The windings are themselves are subjected to a field 1/2 (Bin+Bout). What is the outward pressure on the windings?

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Suppose you wish to produce a 2-T magnetic field in a toroid with an iron core for which magnetic susceptibility is x=3 x 10³. The toroid has a mean radius of 18 cm and is wound with 600 turns. Hint с a. What current is required to produce this magnetic field in the iron core? Current of A is needed. b. For comparison, what current is required to produce the same magnetic field in an air-filled toroid of same geometry? Current of While it is not always practical to have region of magnetic field filled with ferromagnetic materials, this dramatic increase in strength of magnetic field produced is useful in some applications you will see in upcoming chapters. Submit Question 4 A is needed for toroid with no iron core. % Search or type URL 5 MacBook Pro < 6 A 6 7 * 8 ( 9
Please answer it within 30 minutes.I will upvote! Problem: What is the radius of the path of an electron that travels through a .76 T uniform magnetic field at a speed of 70,000 m.
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