Magnetic resonance imaging needs a magnetic field strength of 1.5 T. The solenoid is 1.8 m...
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 1.50-mm-diameter superconducting wire.
Part A
What current is needed?
Express your answer with the appropriate units.
Homework Answers
magnetic field of a solenoid is given by
mu*N*I/L
where mu=magnetic permeability=4*pi*10^(-7)
N=number of turns=1
I=current
L=length of the olenoid
then 1.5=4*pi*10^(-7)*1*I/1.8
I=2.1486*10^6 A
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