A long solenoid (diameter = 5.0 cm) is wound with 960 turns per meter of thin wire through which a current of 300 mA is maintained. A wire carrying 12 A is inserted along the axis of the solenoid. What is the magnitude of the magnetic field at a point 2.0 cm from the axis?
A) 0.41 mT
B) 0.48 mT
C) 0.38 mT
D) 0.56 mT
E) 0.24 mT

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The Answer of A long solenoid (diameter = 5.0 cm) is wound with 960 turns per meter of thin wire through which a current of 300 mA is maintained. A wire carrying 12 A is inserted along the axis of the solenoid. What is the magnitude of the magnetic field at a point 2.0 cm from the axis?
A) 0.41 mT
B) 0.48 mT
C) 0.38 mT
D) 0.56 mT
E) 0.24 mT

A Long Solenoid (Diameter = 5