W1=5 Дж I1=2 A I2=5 A W2=?
W1=L*I²/2 L=2*W1/I1²=2*W2/I2²
W2=W1*(I2/I1)²=5*(5/2)²=31.25 Дж
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W1=5 Дж I1=2 A I2=5 A W2=?
W1=L*I²/2 L=2*W1/I1²=2*W2/I2²
W2=W1*(I2/I1)²=5*(5/2)²=31.25 Дж
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