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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 2.50-mm-diameter superconducting wire.

What size current is needed?

Thanks in advance

  • another EM -

    calculate the number of turns you can make, given diameter of wire, and length of the solenoid. Then use the solenoid equation to find current.

  • another EM -

    i did. so length of solenoid is 1.8m. diameter of wire is 2.5e-3 m. so N=1.8/pi(2.5e-3)
    I=BL/mu*N
    shouldnt that be right? with L being 1.8.

  • another EM -

    got it thank you

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