12.07.2015 Views

The thorny way of truth - Free Energy Community

The thorny way of truth - Free Energy Community

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Marinov<strong>The</strong> second integral has been calculated on a computer and its value is''f" = (lO'^/^rfT '^'"^^"^^ ,,, = 0.2493 pN/A^ (9)'^(1 +cos(a+6)}l/2However the first integral(lO-V^)tT ""^"^"^fXi = '^^i;^{1 - cos(a-6)}l/2(10)is improper as for a = 6 it has a peculiarity and thus it can be not calculated on acomputer. Moreover, I shall now show that the first integral is converging to infinity.Indeed, let us choose some specific value for a (a = Const) and let us calculate theintegral depending on B, denoting it by *(a). For simplicity let us assume a = tt/2. Insuch a case the integral depending on g will beit/2/P*(tt/2) = / (1 - 1sinB)"^^ sin6d6 =.'^Ini*^ + (l+sin6)^/^} - {»^/2)ln(l - sing) - 2{l+sin6)^/2 ir/2<strong>The</strong> last integration is complicated but the reader can easily persuade himself thatthe integration is right, as if he will differentiate the expression on the right <strong>of</strong> (11),he will obtain the integrand in the integral on the left.All terms in the expression on the right are limited when the limits and 7r/2 willbe substituted except for the term ln(l-sin6); by substituting here B = tt/2, we obtainln(l - 1) = InO = - oo, so that the integral (tt/2) is tending to + «.After considering the case from a critical physical point <strong>of</strong> view, I found the following<strong>way</strong> for calculating the pushing force f'l,:Let us put two concentric half-circles from both sides <strong>of</strong> the initial half-circledrawn in Fig. 2, respectively with radii R + xR and R - xR, where x is a quantity smallwith respect to 1. Let currents 1/2 flow along any <strong>of</strong> these half-circles in parallel tothe current I flowing in the initial half-circle. One can easily realize that the forcepushing the U-form Ampere bridge will be the sum <strong>of</strong> the forces with which the currents1/2 in any <strong>of</strong> the secondary half-circles act on the current I in the initial half-circlewhen x tends to zero.

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