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GenericPhy
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QUESTION 1
Two positive charges, each with Q = +10 µC, are fixed to the x-axis at x = +a and x = -a, where a = 4 m.
(a) Find the electric potential at point A on the y-axis where (xA, yA) = (0, b) and b = 5 m. Take the zero of potential to be at infinity.
(b) A particle with charge q = -4 µC and mass m = 2.2 x 10-4 kg is released from rest at point A. Find its speed at the origin.
Gauss's Law?
I know I need to use superposition to calculate the potential at point A due the left-hand charge and add it to the potential at A due to the right-hand charge...
Homework Statement
Two positive charges, each with Q = +10 µC, are fixed to the x-axis at x = +a and x = -a, where a = 4 m.
(a) Find the electric potential at point A on the y-axis where (xA, yA) = (0, b) and b = 5 m. Take the zero of potential to be at infinity.
(b) A particle with charge q = -4 µC and mass m = 2.2 x 10-4 kg is released from rest at point A. Find its speed at the origin.
Homework Equations
Gauss's Law?
The Attempt at a Solution
I know I need to use superposition to calculate the potential at point A due the left-hand charge and add it to the potential at A due to the right-hand charge...
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