1. Four point charges, each with charge q = +2.0 nC, are positioned equidistantly around a...

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1. Four point charges, each with charge q = +2.0 nC, are positioned equidistantly around a circle of radius r = 5.0 cm as shown in figure (A) below. y 91 92 C 94 C x 92 x 94 93 93 (A) (a) What is the electric field E at C? (B) (b) What is the potential at point C located at the center (assuming V = 0 infinitely far away)? If charge q2 is moved to the same position as q4, as shown in figure (B), what are the new (c) electric field E (d) and potential at point C? 1. Four point charges, each with charge q = +2.0 nC, are positioned equidistantly around a circle of radius r = 5.0 cm as shown in figure (A) below. y 91 92 C 94 C x 92 x 94 93 93 (A) (a) What is the electric field E at C? (B) (b) What is the potential at point C located at the center (assuming V = 0 infinitely far away)? If charge q2 is moved to the same position as q4, as shown in figure (B), what are the new (c) electric field E (d) and potential at point C?