Calculate the magnitude of the electric field 2.40 m from a point charge of 5.70 mC (such as found on the terminal of a Van de Graaff).

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Chapter1: Units, Trigonometry. And Vectors
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1. Calculate the magnitude of the electric field 2.40 m from a point charge of 5.70 mC (such as found on the terminal of a Van de Graaff).

 

 

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Step 1

(given)

                    Point charge (q) = 5.70 mC

                                              = 5.70×10-3 C

Distance (r) from the charge = 2.40 m

Electric field ( in magnitude) due to point charge is

E = kqr2

where k =14πε0 is the constant that depends upon permittivity of air. 

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