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btpolk
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Homework Statement
The electric potential V in a region of space is given by the following expression, where A is a constant.
V(x, y, z) = A (6x^2 - 7y^4 + 6z^2)
(a) Derive an expression for the electric field vector E at any point in this region. (Use the following as necessary: A, x, y, and z.)
x-component
Ex = -12Ax
y-component
Ey = 28Ay^3
z-component
Ez = -12Az
(b) The work done by the field when a 2.50 µC test charge moves from the point (x, y, z) = (0, 0, 0.380 m) to the origin is measured to be 4.00 10-5 J. Determine A.
A = 18.47
(c) Determine the electric field at the point (0, 0, 0.380).
E(0, 0, 0.380) = 82.4 N/C negative z
(d) What is the radius of the equipotential contour corresponding to V = 1150 V and y = 9.00 m?
r =?
Homework Equations
The Attempt at a Solution
All I need is part (d). I have no idea what it is talking about.
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