Superconductors are cabable of carrying very large currentswith no resistance. I

Question

Superconductors are cabable of carrying very large currentswith no resistance. If a superconducting wire is formed into asolenoid of length 50 cm with 500 turns what is the magnetic fieldinside the solenoid when the current is 10000a? a. 1.25 t b. 2.50 t c. 6.28 t d. 12.60 t Believe it is b. Not sure. Superconductors are cabable of carrying very large currentswith no resistance. If a superconducting wire is formed into asolenoid of length 50 cm with 500 turns what is the magnetic fieldinside the solenoid when the current is 10000a? a. 1.25 t b. 2.50 t c. 6.28 t d. 12.60 t Believe it is b. Not sure.

Explanation / Answer

      Given that the length ofconductor is L = 50 cm = 0.5 m       Number of turns is N =500       The current inthe solenoid is I = 10000A -------------------------------------------------------------------------------------------           Magneticfield inside the solenoid is B = 0*N*I / L                                                                        = (4 *10-7 T.m/A)(500)(10000A) / 0.5m                                                                     = 12.56T         

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