A nuclear explosion triggers an EMP, or electromagnetic pulse. It is an electro magnetic radiation eruption. If this type of attack happens, it could result in sudden variances in magnetic and electrical fields that could cause damage to voltage and current surges. Massive damage could be caused by electronic and electrical systems
With a nation's propensity to lose the power grid, residents and businesses would not only lose power for an unspecified amount of time, but hospitals and law enforcement agencies would also be rendering all people vulnerable.
The basic features of an assault include many variables. Of these considerations, the detonation altitude is the most important. Lower altitudes with multiple types of bombs can do more damage to what is on the ground. Looking at the bombs used for Hiroshima and Nagasaki, for example, the altitudes were 600 meters and 500 meters respectively, doing maximum damage to the facilities in the areas.
infographic by: www.generatorwhiz.com
