It is dull red, leathery dry. Age plays an important role. Inhalation injury signs. Ryan in NEJM 98 report on Prognosticating factors in burn patients. Worst kind of burn.
Most damages are in the deep tissue.
Can be low or high voltage. Degree of injury correlate with the amount of current, x-sectional area of the body. Damage results from heat production as current passes through the tissues. In term of tissue resistance, bone has highest and nerve has lowest resistance. The higher the resistance the higher the heat is generated.