Find the intensity of an electric field at a distance of 2× 10^-8 cm from a monovalent ion.The ion is point - charged.
Solution
Distance d =2∗10−8m2*10^{-8}m2∗10−8m
Monovalent charge q=charge of electrons
So
the intensity of an electric field at this distance
E=Kqd2=9∗109∗1.6∗10−19(2∗10−8)2E=\frac{Kq}{d^2}\\=\frac{9*10^9*1.6*10^{-19}}{(2*10^{-8})^2}E=d2Kq=(2∗10−8)29∗109∗1.6∗10−19
=3.6∗106N/C.=3.6*10^6N/C.=3.6∗106N/C.
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