Two long straight parallel conductors carrying steady current (I₁) and (I₂) are separated by a distance (d) . Write the magnitude and direction:
A. Magnitude: ({μ₀ I₁ I₂/2π d}) , Direction: Attractive if currents are in the same direction, repulsive if opposite.
B. Magnitude: ({μ₀ I₁ I₂/π d}) , Direction: Attractive if currents are in the same direction, repulsive if opposite.
C. Magnitude: ({μ₀ I₁ I₂/π d}) , Direction: Attractive if currents are opposite, repulsive if in the same direction.
D. Magnitude: ({μ₀ I₁ I₂/2π d}) , Direction: Attractive if currents are opposite, repulsive if in the same direction.
