Маленькийшарик с зарядом q=5∙10-7Кл…

R=L*sin (alpha) w^2*R/g=tg (alpha) w=корень (g*tg (alpha) /R) f=w/2pi=корень (g*tg (alpha) /R) / (2pi) I=dQ/dt=q*f=q*корень (g*tg (alpha) /R) / (2pi)=q*корень (g*tg (alpha) / (L*sin (alpha) / (2pi)=q*корень (g/ (L*cos (alpha) / (2pi) B=mu*I/ (2R)=mu*q*корень (g/ (L*cos (alpha) / (2pi)*1/ (2*L*sin (alpha)=mu*q*корень (g/ (L^3*cos (alpha) / (4*pi*sin (alpha)=4*pi*10^ (-7)*5*10^ (-7)*корень (10/ (1^3*cos (pi/3) / (4*pi*sin (pi/3)=2,58199E-13 Тл ~2,6*10^ (-13) Тл