Field (from a to b) and electric force (F = q E) opposite to magnetic force Charge continues accumulating until F E compensates F B and charges are in equilibrium q E = q v B If rod slides along stationary Ushaped conductor no F B acts on charges in Ushaped conductor, but excess charge at ends of straight rod redistributes along UAn example I obtain an F ratio of 396 with (2, 24) degrees of freedom I go along 2 columns and down 24 rows The critical value of F is 340 My obtained Fratio is larger than this, and so I conclude that my obtained Fratio is likely to occur by chance with a pA Teoria dos Conjuntos, um dos temas de matemática que aparecem no Enem, foi formulada no fim do século XIX pelo matemático russo Georg Ferdinand Ludwig Philip Cantor Conjuntos não podem ser definidos, mas entendese por conjunto toda lista de objetos, símbolos que seja bem definida Facebook ~fBA 40 'ã áÔè "¯^