solenoid has the following dimensions. inner diameter d = 5.12 cm length L = 46.7 cm When a current flows through the coil of the solenoid, the magnetic field inside the solenoid is 5.40 T. a) Determine the magnetic energy density (in J/m3)in the field. uB =  ? J/m3 b) Determine the energy (in kJ) stored in the magnetic field within the solenoid. UB = ?kJ

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