Two positive charges, each with Q = +13 µC, arefixed to the x -axis at x = + a a

Question

Two positive charges, each with Q = +13 µC, arefixed to the x-axis at x = +a andx = -a, where a = 4 m.

(a) Find the electric potential at point A on they-axis where (xA,yA) = (0, b) and b = 6 m.Take the zero of potential to be at infinity.

V(A) = V    
-7e-6   NO

(b) A particle with charge q = -7 µC and massm = 2.2 x 10-4 kg is released from rest atpoint A. Find its speed at the origin.

v(O) = m/s    
286.36   NO

(c) Can the particle escape to infinity?

Answer 1 for yes or 0 for no:      *
0   OK

Explanation / Answer

Q = +13 µC, a = 4 m, b = 6m.

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