- #1
Panphobia
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- 13
Homework Statement
The ring is in the z,y plane.
D = 2m
R = 4m
Q = 8 * 10^-6 C
X = distance to the edge
λ = dQ/dX
dX = rdθ
dQ = infinitely small charge
dX = infinitely small arc of ring
What is the potential difference at the point D perpendicular to the centre of the ring?
Homework Equations
[itex]\int \frac{kdQ}{X}[/itex]
The Attempt at a Solution
[itex]\int \frac{kλrdθ}{(D^2+R^2)^{1/2}}[/itex]
After this how do I get it in terms of dθ?
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