The discussion clarifies that in an ideal transformer, the magnetic flux is generated by the alternating current in the primary coil, which acts as a perfect inductor with zero resistance (R = 0). This current, although it does not perform any work due to its 90-degree phase lag with voltage, is responsible for the self-perpetuating magnetic field necessary for transformer operation. The concept emphasizes that no magnetizing current is needed to produce flux in an ideal transformer, as the magnetic field is inherently created by the primary current.
PREREQUISITESElectrical engineers, physics students, and anyone interested in understanding the fundamental principles of transformer operation and magnetic flux generation.
If the secondary is open there is no power drawn from the power source. But there is current in the primary. The current in the primary is the cause and result of the buildup and collapsing of the magnetic field in the primary (it is self perpetuating).noobish said:something i read from the textbook and i don't understand.
"in an ideal transformer, no magnetizing current is required to produce the flux"
so, where does the flux come from?