# Physics

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17. Potential due to a point charge: What is the electric potential 17.0 cm from a 3.50 μC point charge?

• Physics -

V = -k Q/R

k is the Coulomb's Law constant
= 8.99*10^9 N*m^2/C^2
Q = 3.50*10^-6 C
R = 0.17 m

Solve for V, which will be in J/C units

• Physics -

• Physics -

And Thank you very much.

• Physics -

I was wrong about the negative sign. Relative to zero voltage at infinity, the potential at nonzero distances will be positive.

http://en.wikipedia.org/wiki/Electric_potential

My brain isnt awake yet

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