the turn density is n=N/L = turns/m. If the current in the solenoid is I = amperes. and the relative permeability of the core is k = , then the magnetic field at the center of the solenoid is. B = Tesla = gauss. The Earth's magnetic field is about half a gauss.The relative permeability of magnetic iron is around 200.n the above expression for the magnetic field B, n is the number of turns per unit length, sometimes called the turns density.
Definition of con artist. : a person who tricks other people in order to get their money The couple lost their savings to a con artist who told them he was an investment broker.
He views each new investor as a predicable set of revenues and expenses, with the revenues flowing down to him. The con artist receives $500 for each new member, and at most he will have to pay $240 in commissions to earlier investors in the new recruit's upline, i.e. those people responsible for bringing him into the system.