# Transformer Hysterisis

I have the following circuit to plot X-Y plot in an Oscilloscope to get Hysteresis curve.
R2 and C2 are kept so that the cutoff frequency of low pass filter formed is less than 2Hz.

   1
------- < 2*π*(2Hz)
(R2*C2)


The circuit is realized using a Transformer with two input and output terminal pairs. One of the input and output terminal pairs are kept open while plotting the X-Y plot.

Now, if I short the output terminal that was kept open, what will happen to my hysteresis loop in the oscilloscope? Could you please explain?

Following circuit is expected after shorting.

• Your hysteresis loop will be reduced to a hysteresis line :) – Dmitry Grigoryev Mar 23 '17 at 16:23
• @DmitryGrigoryev Could you please why there is no significant current through C2? – Jithin Pavithran Mar 23 '17 at 17:13