Experts plzz solve this question

Dear Student
The force between two wires can be found using the formulaF =μoI1I2L2πrThe force between two wires per unit length  can be found using the formulaF =μoI1I22πrPutting valuesF =4π×10-7×4×82π×0.25=2×10-7×4×80.25=25.6×10-6 N/m
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