A metal ball weighs 200 Newton in air. When the ball is submerged in water it weighs 150 Newton. The weight of water displaced by the submerged ball is… A. 50
B. 150
C. 200
D. 100

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.