Function magnetic_field_around_long_straight_wire 

pub fn magnetic_field_around_long_straight_wire(
    current: f64,
    distance: f64,
) -> Option<f64>

Computes magnetic flux density around a long straight wire.

Formula: B = μ0 * I / (2πr)

Examples

use use_magnetism::magnetic_field_around_long_straight_wire;

let field = magnetic_field_around_long_straight_wire(10.0, 0.5).unwrap();
assert!(field.is_sign_positive());