Alternating Current: acts as the name implies. Electrons in the circuit more first in one direction and then in the opposite direction, alternating back and forth about relatively fixed positions.
Ampere: Electric current is measured in Ampere for which the SI unit is symbolA*.
Diode: the convector uses a diode, a tiny electric device that acts as a oneway value to allow electron flow in only one direction.
Direct Current: refers to aflow of charge that ALWAYS FLOWS IN ONE DIRECTION.
Electric current: simply the flow of charge.
Electric Resistance: the current also depends on the resistance that the conductor offers to the flow of charge.
Electric Power: the rate at which electrical energy is convected into another form such as mechanical energy, heat or light.
Ohm: electric resistance is measured in units ohm
Ohm's Law: this relationship among voltage, current and resistance is called is called " ohm's law"
Potential Difference: charge flows when there is " potential difference" or difference in potential ( voltage ) between the ends of a conductor
voltage source: something that provides a potential difference is known as a voltage source.