Which of the following is a true statement? a. electromagnetic waves consist of only changing electric fields b. electromagnetic waves can darien speed, wavelength and frequency c. electromagnetic waves do not always need a medium to travel d. electromagnetic waves are longitudinal waves

What term do psychologists use to designate our personal awareness of feelings, sensations, and thoughts?

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.

Photons with the highest energy have the longest period