Mar 11, 2007 · It goes: "Assuming the equation (Ampere's Law: B=unI) applies for the solenoid, calculate the value and uncertainty of u (permeability of free space) using the graph of B vs. n. …

May 21, 2004 · FB/L is the force per unit length on the wires, [itex]\mu_0[/itex] is the permeability of free space, I1 and I2 are the currents in each wire, and a is the distance between the wires. …

Dec 1, 2016 · I was wondering since permeability increases in ferromagnetic materials when an external magnetic field is applied I was wondering if that was also true for free space. …

Nov 16, 2011 · Your book means that it is an exact number, not that it is unit-less. It is only exact because we choose it that way, with nothing physically significant about it being exact. The …

Jun 30, 2011 · Then they measure the actual magnetic field and compare it to the magnetic field calculated from the Biot-Savart law which enables them to define the constant necessary to …

Apr 7, 2012 · A changing electric field produces a changing magnetic field and vice-versa. Light is basically oscillating electric and magnetic fields supported by this interaction between them. …

Aug 26, 2007 · Magnetic permeability is the internal magnetic field induced in a medium divided by the applied magnetic field (technically defined as B/H). Relative permeability is the …

Sep 8, 2017 · The meaning of the permeability of free space is perhaps more easily understood by looking at its role in Ampere's Law ##\nabla \times \mathbf B=\mu_0\mathbf J##, which relates …

Mar 28, 2012 · I graphed Magnetic Field (T) vs Current (A) and my slope was equal to 0.0012 which is off by 10^-3 ...

Nov 21, 2020 · In addition, under the same size ratio, the maximum reluctance will be limited by the permeability of free space, unless we artificially reduce the relative permeability to less …