- #1
lekh2003
Gold Member
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I have created a make-shift transformer using a circular core and some wire:
It is quite basic, but I have some questions about the currents induced when one side of this transformer has a 220 V AC current passed through it.
I have an oscilloscope from which I have the graph:
The perfect sine wave is the input current (220 V). I am just wondering why the induced current (the other side of the transformer) has such a sharp spike in the current. My initial prediction was that the induced current would also be a sine wave.
Then, when I saw the spike, I thought that there was a spike because the magnetic field is changing most when the current completely changes direction (When the sine wave intersects with x-axis). Am I right?
It is quite basic, but I have some questions about the currents induced when one side of this transformer has a 220 V AC current passed through it.
I have an oscilloscope from which I have the graph:
The perfect sine wave is the input current (220 V). I am just wondering why the induced current (the other side of the transformer) has such a sharp spike in the current. My initial prediction was that the induced current would also be a sine wave.
Then, when I saw the spike, I thought that there was a spike because the magnetic field is changing most when the current completely changes direction (When the sine wave intersects with x-axis). Am I right?