Two point charges of unknown magnitude and sign are placed adistance r apart. It

Question

Two point charges of unknown magnitude and sign are placed adistance r apart. It is found that the electric fieldintensity is zero at some point on the line joining the two chargesfrom which it can be concluded that the two charges must (finishsentence describing magnitude and sign for charges) A hollow metal sphere 1.0 m in diameter carries a charge of4.0 C The electric field 0.2 meters from the centerof the sphere is most nearly   ____ N/C Two point charges of unknown magnitude and sign are placed adistance r apart. It is found that the electric fieldintensity is zero at some point on the line joining the two chargesfrom which it can be concluded that the two charges must (finishsentence describing magnitude and sign for charges) A hollow metal sphere 1.0 m in diameter carries a charge of4.0 C The electric field 0.2 meters from the centerof the sphere is most nearly   ____ N/C

Explanation / Answer

diameter of the metal sphere D = 1 m radius of the metal sphere R = D / 2 = 0.5 m Charge Q = 4 * 10 ^ -6 C distance of the point from center of the sphere   r= 0.2 m The electric field 0.2 meters from the center of thesphere is most nearly zero N / C Since the point is inside the sphere                                                                                                    

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