Question

in an electric feild the potential at a point is given by following relation: V=343/r.
the electric feild at r=3i+2j+6k is

Answer 1

Answer on Question #79937, Physics / Electromagnetism

**Question:**

in an electric field the potential at a point is given by following relation: $V = 343 / r$. the electric field at $r = 3i + 2j + 6k$ is

**Solution:**

As far as $r = \left| \vec{r} \right| = \sqrt{3^2 + 2^2 + 6^2} = \sqrt{49} = 7$, then $V = 343 / 7 = 49$.

**The answer:**

$V = 343 / 7 = 49$

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