Which of the following is not a disadvantage of an electromagnetic wave? Gamma rays can cause damage to cells and birth defects.

Overexposure to microwaves can affect parts of the brain.

Exposure to too much infrared light can cause skin cancer.

Excessive exposure to radio waves can cause cancer.

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.