The EM-Boar Tigers have been fought back for now but your team needs to get a message out that you all are under attack. Cellular and radio signals are being somehow blocked from an external source but you know that the annex building that is within sight of your compound has an emergency telegraph machine for just such attacks. You need to get a message to the telegraph operator. You notice that there is an old-fashioned camera that produces flashes via a capacitor. You decide that you might be able to communicate with the annex via morse code and go to the roof to try and send your message.

You measure the capacitor and find that the capacitor plates are 2 cm by 3 cm and separated by a distance of 40 $\mu m$. When hooked up to a battery, the plates become fully charged with $Q = 1.5*10^{-7}C$. The team leader however is concerned that the electric field inside the capacitor is going to be too large and cause sparking between the plates and destroy your only chance at getting out a message.

With your team, build a model for the capacitor that allows you to calculate the electric field inside and outside the parallel plates. Make sure you have a diagram of the electric field, a graph of the electric field, and a graph of the electric potential to convince him that the electric field is either safe or unsafe so that you can get out the rescue message.