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For problem 2, consider the following situation: point C located at (0 m, +5 m); qA...

For problem 2, consider the following situation: point C located at (0 m, +5 m); qA = -6 =micro Coulombs located at (+6 m, 0 m); qB = +2 micro Coulombs located at ( -2 m, 0 m).  

a) Assuming that the voltage is zero at infinity, what is the voltage at the point C?

. b) How much energy would it take to bring a third charge of +7 micro Coulombs from very far away (assume infinitely far away) and place it at point C? [Note: a + answer indicates it takes energy to make the move, a negative answer indicates it gives up energy in the move.]

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Answer #1

Given:

a)

The potential at C is,

b)

Work done to bring the third charge is,

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