Dear Experts,How F=qE?

Dear Student,
From Coulomb's law, the force on charge q due to a charge Q is given by:

The electric field due to charge Q is given as:
$\stackrel{\to }{E}=\frac{1}{4\pi {\epsilon }_{o}}\frac{Q}{{r}^{2}}\stackrel{^}{r}$
So, comparing both equations we can write:
$\stackrel{\to }{F}=q\stackrel{\to }{E}$
It is the force on the charge q due to the field generated by Q.

Regards

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