Find the potential at a distance of 0.07m from a -6nC charge.
Potential
V=kQrV=\frac{kQ}{r}V=rkQ
V=−9×109×6×10−90.07=−771.42CV=-\frac{9\times10^9\times6\times10^{-9}}{0.07}=-771.42CV=−0.079×109×6×10−9=−771.42C
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