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| -rw-r--r-- | emratio.tex | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/emratio.tex b/emratio.tex index 40c869b..4a45931 100644 --- a/emratio.tex +++ b/emratio.tex @@ -138,12 +138,12 @@ can be performed in a lighted room. \subsection*{Safety} You will be working with high voltage. Make all connections when power is off. -Turn power off before changing/removing connections. Make sure that there is no -loose or open contacts. +Turn power off before changing/removing connections. Make sure that there +are no loose or open contacts. \subsection*{Set up} The wiring diagram for the apparatus is shown in Fig.~\ref{emfig3}. -\textbf{Important: Do not turn any equipment until an instructor have checked +\textbf{Important: Do not turn any equipment until an instructor has checked your wiring.} \begin{figure}[h] \centering @@ -166,8 +166,8 @@ Acceptable power supplies settings: Watch the ammeter and take care that the current is less than 2 A. \item Wait several minutes for the cathode to heat up. When it does, you -will see the electron beam emerge from the electron gun. Its trajectory be -curved by the magnetic field. +will see the electron beam emerge from the electron gun. Its trajectory +will be curved by the magnetic field. \item Rotate the tube slightly if you see any spiraling of the beam. Check that the electron beam is parallel to the Helmholtz coils. If it is not, |