The main magnet in an MRI machine is a superconducting solenoid 1.3 m long and 45...
The main magnet in an MRI machine is a superconducting solenoid 2.0 m long and 33 cm in radius. During normal operation, the current through the windings is 81 A, and the resistance of the windings is zero. The inductance of the solenoid is 89 H. (a) Calculate the turns per meter of the solenoid. (b) Calculate the magnitude of the magnetic field generated by the MRI machine during normal operations. (c) Calculate the magnetic flux through a single turn...
A certain superconducting magnet in the form of a solenoid of length 0.40 m can generate a magnetic field of 11.0 T in its core when its coils carry a current of 145 A. The windings, made of a niobium-titanium alloy, must be cooled to 4.2 K. Find the number of turns in the solenoid. turns
A certain superconducting magnet in the form of a solenoid of length 0.38 m can generate a magnetic field of 1.5 T in its core when its coils carry a current of 80 A. The windings, made of a niobium-titanium alloy, must be cooled to 4.2 K. Find the number of turns in the solenoid. turns
A certain superconducting magnet in the form of a solenoid of length 0.36 m can generate a magnetic field of 5.5 T in its core when its coils carry a current of 95 A. The windings, made of a niobium-titanium alloy, must be cooled to 4.2 K. Find the number of turns in the solenoid. turns
A very large, superconducting solenoid such as one used in MRI scans, stores 1.00 MJ of energy in its magnetic field when 120 A flows. (a) Find its self-inductance (in H) (b) If the coils "go normal," they gain resistance and start to dissipate thermal energy. What temperature (in °C) increase is produced if all the stored energy goes into heating the 1080 kg magnet, given its average specific heat is 200 J/kg.°C? OC
A certain superconducting magnet in the form of a solenoid of length 0.510 m can generate a magnetic field of 9.50 T in its core when its coils carry a current of 85 A. Find the number of turns in the solenoid. _____ turns.
In an MRI machine, a large magnetic field is generated by the cylindrical solenoid surrounding the patient. If the current is 4 kA, the magnet depth is 3m and superconducting wire is 1cm wide, what is the magnetic field that the patient experiences?
Question 13 5 points You are designing the main solenoid for an MRI machine The soledoid should be 155 m long When the current is 86 4 A, the magnetic field inside should be 1 98 T, and the core of the solenoid is air. How many turns should your solenoid have?
Problem 5: The magnetic field strength in a long superconducting solenoid buried underground in Switzerland is 15:0 T. The cross sectional area of the solenoid is 3.0x10^-4 m^2 ; and its length is approximately 40 km. If a loss of cooling allows the superconducting wires to suddenly become normal, so that B drops to zero, how much energy will be released as heat?
Magnetic Resonance Imaging An MRI (magnetic resonance imaging) solenoid produces a magnetic field of 1.4 T . The solenoid is 2.5m long, 1.0 m in diameter, and wound with insulated wires 2.2 mm in diameter. Find the current that flows in the solenoid. (Your answer should be rather large. A typical MRI solenoid uses niobium-titanium wire kept at liquid helium temperatures, where it is superconducting.)