👉 Pulsing is a term used in physics and electrical engineering to describe an electric current that oscillates or vibrates. It occurs when there is a change in voltage across a circuit element, such as a resistor, capacitor, or switch, which causes the current to fluctuate and change direction. This phenomenon can be observed in circuits where a small amount of current flows through a resistance, causing it to vibrate and oscillate back and forth in response to changes in voltage.