L=0.5 м I=0.5 A B=0.2 Тл d=0,4 м А=?
A=F*d=I*B*L*d=0.5*0.2*0.5*0.4=0.2 Дж
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L=0.5 м I=0.5 A B=0.2 Тл d=0,4 м А=?
A=F*d=I*B*L*d=0.5*0.2*0.5*0.4=0.2 Дж
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