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Consider a spherical Gaussian surface and three charges: q 1 = 1.66 ? C , q 2 =

ID: 1269146 • Letter: C

Question

Consider a spherical Gaussian surface and three charges: q1 = 1.66?C , q2 = -2.20?C , and q3 = 3.84?C . Find the electric flux through the Gaussian surface if it completely encloses (a) only charges q1 and q2, (b) only charges q2 and q3, and (c) all three charges.

Part A

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Part B

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Part C

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Part D

Suppose a fourth charge, Q, is added to the situation described in part C. Find the sign and magnitude of Q required to give zero electric flux through the surface.

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? =   N?m2/C  

Explanation / Answer

Electric flux = Q/(E0)
where E0 is permittivity of free space ie 8.85