There is a 40 cm long solenoid  that has 600 wire loops. If Jim uses a magnetic sensor near the center of the solenoid and  records 3.0mT, what is the current through the wire. Assume unit A for options below. a.0.63.     B.1.6.      C.2.8 d.4.      E.7.2

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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.