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Question

Physics Question on Moving charges and magnetism

When two infinitely long parallel wires separated by a distance of 1 m, each carry a current of 3 ampere, the force in newton/ metre length experienced by each will be, (give μ0=4π×10−7\mu_0=4\pi \times 10^{-7} S.I.Units) .

A

2×10−72 \times 10^{-7}

B

3×10−73 \times 10^{-7}

C

6×10−76 \times 10^{-7}

D

18×10−718 \times 10^{-7}

Answer

18×10−718 \times 10^{-7}

Explanation

Solution

F=μ0 i1 i22π r×1F=\frac{\mu_0\,i_1\,i_2}{2\pi\,r}\times 1