Respuesta :
Answer:
[tex]i_2 = 978750 A[/tex]
Since the force between wires is attraction type of force so current must be flowing in upward direction
Explanation:
Force per unit length between two current carrying wires is given by the formula
[tex]F = \frac{\mu_0 i_1 i_2}{2 \pi d}[/tex]
here we know that
[tex]F = 7.83 \times 10 N/m[/tex]
[tex]d = 7.0 cm = 0.07 m[/tex]
[tex]i_1 = 28 A[/tex]
now we will have
[tex]F = \frac{4\pi \times 10^{-7} (28.0)(i_2)}{2\pi (0.07)}[/tex]
[tex]7.83 \times 10 = \frac{2\times 10^{-7} (28 A)(i_2)}{0.07}[/tex]
[tex]i_2 = 978750 A[/tex]
Since the force between wires is attraction type of force so current must be flowing in upward direction
