the field, or outside?
It seems to me that things outside the field would not affect things inside. However, inside, it would take a LOT of incandescent bulbs to increase the pressure by any significant amount (or one very powerful one). An oven would increase the temp more substantially, but only if it was open. In such a case, anyone inside the field would be cooked before the pressure was raised enough to markedly increase the size of the field.
This, again, depends on the strength of the field. Ideally, the field is fairly strong. |