diff --git a/Advanced/Random Walks/parts/1 circuits.tex b/Advanced/Random Walks/parts/1 circuits.tex index bbf067e..9837e23 100644 --- a/Advanced/Random Walks/parts/1 circuits.tex +++ b/Advanced/Random Walks/parts/1 circuits.tex @@ -18,7 +18,7 @@ In the definitions below, let $X$ be the set of nodes in a circuit. In the real world, voltage is always measured \textit{between two points} on a circuit. Voltage is defined as the \textit{difference} in electrical charge between two points. Hence, voltage is a function of two nodes. - + \vspace{2mm} Note that this is different than current and resistance, which aren't functions @@ -67,7 +67,7 @@ Convince yourself that $V(a, b) = V(a) - V(b)$. \definition{Kirchoff's law} The second axiom of electrical circuits is also fairly simple. \textit{Kirchoff's law} states that the sum of all currents connected to -a given edge is zero. You can think of this as \say{conservation of mass}: nodes in our circuit do not create or +a given edge is zero. You can think of this as \say{conservation of mass}: nodes in our circuit do not create or destroy electrons, they simply pass them around to other nodes.\par Formally, we can state this as follows: @@ -88,11 +88,11 @@ which must hold at every node \textbf{except the source and ground vertices.} \p \begin{instructornote} Be aware that some students may not be comfortable with these concepts from physics, nor with the circuit notation on the next page. - + \vspace{2mm} - + It may be a good idea to give the class a quick lecture on this topic, - explaining the basics of electonic circuits and circuit diagrams. + explaining the basics of electronic circuits and circuit diagrams. \vspace{2mm}