Current needed through solenoid to produce given B field

by Linus Pauling
Tags: current, field, produce, solenoid
Linus Pauling
Linus Pauling is offline
Apr18-10, 02:41 PM
P: 190
1. Magnetic resonance imaging needs a magnetic field strength of 1.5 T. The solenoid is 1.8 m long and 75 cm in diameter. It is tightly wound with a single layer of 2.20-mm-diameter superconducting wire.

2. B = mu0BI / l

3. Is there a way to do this without finding N? Either way, how do I calculate N with the given information?
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tiny-tim is offline
Apr18-10, 03:53 PM
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Hi Linus Pauling!
Quote Quote by Linus Pauling View Post
…how do I calculate N with the given information?
It's "tightly wound", and it's 1.8m long …

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