(a) Calculate the self-inductance (in mH) of a 49.0 cm long, 10.0 cm diameter solenoid having 1000 loops. mH (b) How much energy (in J) is stored in this inductor when 19.5 A of current flows through it? (c) How fast (in s) can it be turned off if the induced emf cannot exceed 3.00 V?

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