Two point charges are separated by 25.0 cm (see (Figure 1) ). Assume that q1 = -

Question

Two point charges are separated by 25.0 cm (see (Figure 1) ). Assume that q1 = -5.25 nC and q2 = -11.0 nC Part A Find the net electric field these charges produce at point A. Express your answer in newtons per coulomb to three significant figures. E = N/C SubmitMy AnswersGive Up Part B Find the net electric field these charges produce at point B. Express your answer in newtons per coulomb to three significant figures. E = N/C SubmitMy AnswersGive Up Part C What would be the magnitude of the electric force this combination of charges would produce on a proton at A? Express your answer in newtons to three significant figures.

Explanation / Answer

q1 = -5.5 nC, q2 = -11 nC, d = 25 cm

Electric filed E = kq/r^2

E =E1 +E2

EA = -(9*10^9*5.25*10^-9/(0.25-0.1)^2) +(9*10^9*11*10^-9/(0.1)^2)

EA = 7800 N/C direction is right side

(B) EB = (9*10^9*5.25*10^-9/(0.1)^2) +(9*10^9*11*10^-9/(0.25+0.1)^2)

EB = 5530 N/C along right side

(C) Electric forCe F = qE

F = 1.6*10^-19*7800

F = 1.25*10^-15 N

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