Use Ampere’s Law to find the magnetic field outside of a long straight cylinder of current with current density J. Remember that J= I/A. When indicating the direction,describe it as clockwise or counterclockwise when looking at the wire with the current going away from you.
Use Ampere’s Law to find the magnetic field outside of a long
straight cylinder of current with current density J. Remember that J= I/A. When indicating the direction,describe it as clockwise or counterclockwise when looking at the wire with the current going away from you.