The Motor Effect (HSC SSCE Physics): Quizzes

$4\pi \times 10^{-7}$ T m A⁻¹

Concentric circular loops

Attractive

Repulsive

$\frac{\mu_0 I_1 I_2}{2\pi r}$

$2 \times 10^{-7}$ N m⁻¹

Equal magnitude, opposite direction

90°

$\frac{\mu_0 I}{2\pi r}$

Coulomb, gravitational, and magnetic