F = k × I1 × I2 × Δl/r ; I1 = I2 = I
F/Δl = k × I^2/r = μ0 × I^2/2πr = 4π × 10^-7 × 4/2π × 0,01 = 8 × 10^-7/10^-2 = 8 × 10^-5 Н/м
F = k × I1 × I2 × Δl/r ; I1 = I2 = I
F/Δl = k × I^2/r = μ0 × I^2/2πr = 4π × 10^-7 × 4/2π × 0,01 = 8 × 10^-7/10^-2 = 8 × 10^-5 Н/м