How does the secondary current depend on the resistive load placed on the secondary winding of a loosely coupled transformer, in which the primary winding is supplied with a linear current ramp ?
Answer
The easiest way to analyze such problem is to write Kirchhoff's equations for a pair of coupled coils, the way EEs do it: V1=L1dI1dt+MdI2dtV2=MdI1dt+L2dI2dt
You have also specified that the input current is a ramp I1=k1t so that the coupled equations become V1=L1k1+MdI2dt−I2R2=Mk1+L2dI2dt
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