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Electromagnetic fields are a combination of electric and magnetic fields of force that are both invisible. Natural events such as the Earth's magnetic field, as well as human actions, mostly through the usage of electricity, produce them.

Electromagnetic fields are produced by devices such as cell phones, power cables, and computer screens.

An electron is a subatomic particle with a negative charge. It can be either free (not bound to any atom) or tied to an atom's nucleus. The energy levels of electrons in atoms are represented by spherical shells of varied radii.

$\stackrel{→}{v}=5.0×{10}^6\hat{i}\mathrm{m}/\mathrm{s}$

$\stackrel{→}{B}=0.10\hat{j}\mathrm{T}$

role="math" localid="1649999418443" $\stackrel{→}{F}=\left(9.6×{10}^{-19}\hat{i}-9.6×{10}^{-14}\hat{k}\right)\mathrm{N}$

$\stackrel{→}{F}=q\left(E+\left(v×B\right)\right)$

$\stackrel{→}{F}=q\left(E+\left(v×B\right)\right)$

$E=\frac{F}{q}-\left(v×B\right)$

$E=\frac{\left(9.6×{10}^{-19}\hat{i}-9.6×{10}^{-14}\hat{k}\right)}{1.6×{10}^{-19}}-\left(5.0×{10}^6\hat{i}×0.10\hat{j}\right)$

$E=-5×{10}^{5}j$

The force of an Electric field is$E=-5×{10}^{5}j$.