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A superconducting magnet is a 2.5 m long solenoid of 75 cm diameter, producing a field...

A superconducting magnet is a 2.5 m long solenoid of 75 cm diameter, producing a field of 7 T. The current energizing this device is 230 A.
(a) How many turns in the magnet?
(b) What is the inductance of the magnet?

(c) How long will it take to ”charge” the magnet to full field with a power supply providing 3.5V?

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