What is the magnitude of magnetic force per unit length on a wire carrying a current of 8 A making an angle of 30° with the direction of a uniform magnetic field of 0.15 T?

Here, / = 8 A = 30°, B = 0.15T, A = ?, / = lm

We know that, F = BI sin θ

F/L = 0.15 x 8 x sin 30°

F = 0.15 x 8 x 1/2 = 0.6 N/m