Coulomb force between two charges, two ways

The same calculation run twice, side by side. Change anything on either side and the difference is shown output by output. This page is a link: both sets of numbers are in the address bar.

Side A open alone

q1 First charge

The charge on the first particle. Negative for a negative charge.

q2 Second charge

The charge on the second particle.

r Separation

The distance between them, centre to centre.

Side B open alone

q1 First charge

The charge on the first particle. Negative for a negative charge.

q2 Second charge

The charge on the second particle.

r Separation

The distance between them, centre to centre.

Swap sides

What changed

The two sides are the same. Change something on either.

Output	A	B	B against A
F Force	0.00036 N	0.00036 N	same

Side A, with its numbers

0.00036 N = \frac{k_{e} 1 nC 1 nC}{5^{mm 2}}

LaTeX

0.00036\,\mathrm{N} = k_e \frac{1\,\mathrm{nC} \cdot 1\,\mathrm{nC}}{5\,\mathrm{mm}^2}

Side B, with its numbers

0.00036 N = \frac{k_{e} 1 nC 1 nC}{5^{mm 2}}

LaTeX

0.00036\,\mathrm{N} = k_e \frac{1\,\mathrm{nC} \cdot 1\,\mathrm{nC}}{5\,\mathrm{mm}^2}