How is the nuclear fusion that takes place in the sun different from a chemical reaction? a. it happens at a lower temperature. b. more energy is released for a given mass of fuel. c. more hydrogen is formed. d. the energy input is greater than the energy output.

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.