Chapter: Current Electricity
Question
Write the mathematical expression of Coulomb’s law?
Solution
If the two-point charges of magnitude q1 and q2 are separated by a distance “r”‘ in air or vacuum then the force of attraction or repulsion, F, between them can be expressed as
F = 1/4πꜪ0 * q1q2/r2
(where Ꜫ0 is called the permittivity of vacuum).
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Chapter: Current Electricity