Question

Question #f867b

Answer 1

The magnetic field produced is proportional linearly to the magnitude of the electric current. Thus, larger the current is, the stronger is the induced magnetic field.

`vec(dB) = mu_0/(4pi)(Ivec(dl) X vec R)/R^3`

This gives magnetic induction for a conducting vector element `vec(dl)` carrying current `I` at a distance `vec R` from `vec(dl)`.

This is Biot-Savart's law.

This shows how the magnetic field `vec(dB)` is proportional to the current `I`.