Some gas is trapped in a large syringe by a piston. the atmospheric pressure is 100kpa. the pressure gauge indicates that the gas pressure is 200kpa above atmospheric pressure. the piston moves outwards and the volume of the trapped gas doubles. the temperature remains constant. what is the new gas pressure

Place several e-field sensors at a few points on different equipotential lines, and look at the relationship between the electric field and the equipotential lines. which statement is true? 1-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of higher voltages. 2-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of lower voltages. 3-at any point, the electric field is parallel to the equipotential line at that point.