Answer:
1.6 x [tex]10^{-7}[/tex] N
Explanation:
If the force between two actual wires has this value, the current is defined to be exactly 1 A.
The force between two parallel wires carrying current can be defined as,
F= μ[tex]I_{1}[/tex] [tex]I_{2}[/tex] L/ 2πd
where,
current [tex]I_{1}[/tex] = 1Amp
current [tex]I_{2}[/tex] = 2amp
Length 'L'= 1m
distance 'd'= 2.5m
permeability of free space 'μ'= 4πx[tex]10^{-7}[/tex] N/m
Putting the above values in the equation,
F=( 4πx[tex]10^{-7}[/tex] x 1 x 2 x 1 )/ 2πx2.5
F= 1.6 x [tex]10^{-7}[/tex] N
