8. Physics 275 Exam 2 Name: A solenoid with 500 turns, 0.10 m long, carrying a current of 4.0 A and with a radius of 102 m will have what magnetic field (B) at its center? (Ho = 4x107 T*m/A). a. 31x10 T b. 62x101 T 500- turns 10 long 125x10 T 250x10+ T rm/A 411 Current 4,0 A Radius 162 m No = 471 x 107 Txm/A

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Bar Magnet

In physics, magnetism is a phenomenon exhibited by a magnetic substance that exerts either attractive or repulsive force. A bar magnet is either a rectangular or round and hollow fit comprised of ferromagnetic materials and has a fanciful attractive field surrounded by it.