ระยะเวลา: 15m
What is Voltage and Current What is Electric Current ? An electric current is a flow of electric charge in a circuit. More specifically, the electric current is the rate of charge flow past a given point in an electric circuit. The charge can be negatively charged electrons or positive charge carriers including protons, positive ions or holes....
ติดต่อเรา: vidmatestudio@gmail.com|ลิขสิทธิ์ © 2026 สงวนลิขสิทธิ์