A solenoid that is 102 cm long has a cross-sectional area, Ask an Expert

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A solenoid that is 102 cm long has a cross-sectional area of 16.3 cm2. There are 980 turns of wire carrying a current of 9.08 A.

(a) Calculate the energy density of the magnetic field inside the solenoid.

(b) Find the total energy in joules stored in the magnetic field there (neglect end effects).

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