Recent content by SOMEBODYCOOL

If you have a rectangular square potential barrier of some height, say \lambda/L, and thickness L, what is the transmission coefficient and what is its value in the limit that L goes to 0? Thus you have the height of the barrier going to infinity, while the width goes to zero... Assuming...

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So, the parametric representation of a point on the semi-circle would be (0, bcos(t), bsin(t)) where b is the radius of the semi-circle. The vector R is just [d, 0, 0] where d is the distance on the axis of the point and then the e is the unit vector from R-r But what's dr? And where does the...

Homework Statement Determine the magnetic field strength and direction at a point 'z' on the axis of the centre of a semi-circular current loop of radius R.Homework Equations Biot Savart Formula d\vec{B}=\frac{\mu_{0}Id\vec{r}\times\hat{e}}{4\pi|\vec{R}-\vec{r}|^{2}} e being the unit vector...

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