The magnitude of the $x$ -component of a unit vector at the point (1,1) that is normal to equipotential lines of the potential function $\phi(r)=\frac{1}{r^{2}+4},$ where $r=\sqrt{x^{2}+y^{2}},$ is _____________(accurate to two decimal places).

Question ID - 155531 | SaraNextGen Top Answer

The magnitude of the $x$ -component of a unit vector at the point (1,1) that is normal to equipotential lines of the potential function $\phi(r)=\frac{1}{r^{2}+4},$ where $r=\sqrt{x^{2}+y^{2}},$ is _____________(accurate to two decimal places).