Final answer:
The method commonly used for analyzing the effectiveness of lightning protection is the analytical method. This method involves determining the magnitude and direction of a resultant vector using the Pythagorean theorem and trigonometric identities.
Step-by-step explanation:
The method commonly used for analyzing the effectiveness of lightning protection is the analytical method. This method involves determining the magnitude and direction of a resultant vector using the Pythagorean theorem and trigonometric identities. By analyzing the vector components of the lightning protection system, we can assess its effectiveness in diverting lightning strikes away from vulnerable areas.