Two long parallel wires carrying currents 2.0 A and 4.0 A respectively in opposite directions. The separation between the wires is 0.25 m. Calculate the force per unit length between them in the order of 10−6.Also, state whether it will be attractive or repulsive.Take magnetic permeability as μ0=4π×10−7N/A2 Formula to be used, F(per unit length)=μ0I1I22πd

Two long parallel wires carrying currents 2.0 A and 4.0 A respectively

1.	Two long parallel wires carrying currents 2.0 A and 4.0 A respectively in opposite directions. The separation between the wires is 0.25 m. Calculate the force per unit length between them in the order of 10−6.Also, state whether it will be attractive or repulsive.Take magnetic permeability as μ0=4π×10−7N/A2 Formula to be used, F(per unit length)=μ0I1I22πd
Answer» Two long parallel wires carrying currents 2.0 A and 4.0 A respectively in opposite directions. The separation between the wires is 0.25 m. Calculate the force per unit length between them in the order of $10^{- 6}$ .Also, state whether it will be attractive or repulsive.Take magnetic permeability as $μ_{0} = 4 π \times 10^{- 7} N / A^{2}$ Formula to be used, $F (p e r u n i t l e n g t h) = \frac{μ_{0} I_{1} I_{2}}{2 π d}$