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.

Question

What size current is needed?

Thanks in advance

Answer 1

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.

Answer 2

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.

Answer 3

got it thank you