1.A positive charge of 10 -8 C experiences a force of 0.25 N when located at a certain point in an electric field. Find the intensity of the electric field at that point.
The intensity of the electric field
"E=\\frac{F}{q}=\\rm \\frac{0.25\\: N}{10^{-8}\\: C}=2.5\\times 10^7\\: N\/C"
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