MNRF

Radio-frequency is a high frequency alternating electric current. When an electric current flows through the body, the body offers resistance to its flow. This resistance of tissue is known as impedance. Joule’s law states that when electric current meets resistance, heat is generated due to the micro-oscillations of charged particles.

When the temperature of tissues rises to about 60 degrees, tissues get coagulated. RF effect is electro-thermal. Depth of penetration of RF is inversely proportional to the frequency of RF.