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## Main Question or Discussion Point

Hi, I would like to ask a question about Mutual Inductance and Transformer.

Suppose I have two coils N1 and N2, where N1 is the primary coil and N2 is the secondary coil that is connected in series with some resistance Rx. If I place a voltage V1 across the primary coil, the output voltage V2 across the secondary coil is N2/N1*V1. Also, if a current A1 is flowing in the primary coil, then the current A2 flowing in the secondary coil is V1/V2*A1.

Now, if I connect a resistor Ry in parallel with Rx (or do anything to reduce the resistance), the overall resistance of the secondary coil decreases, and therefore A2 increases. And since the voltages did not change (anything you do to the secondary coil is not supposed to affect the voltage of the primary coil), A1 should also increase.

Now this is where my confusion is. How can the voltage of the primary coil remain the same when the current increases? By Ohms law, shouldn't the voltage of the primary coil also increase?

Thanks in advance.

Suppose I have two coils N1 and N2, where N1 is the primary coil and N2 is the secondary coil that is connected in series with some resistance Rx. If I place a voltage V1 across the primary coil, the output voltage V2 across the secondary coil is N2/N1*V1. Also, if a current A1 is flowing in the primary coil, then the current A2 flowing in the secondary coil is V1/V2*A1.

Now, if I connect a resistor Ry in parallel with Rx (or do anything to reduce the resistance), the overall resistance of the secondary coil decreases, and therefore A2 increases. And since the voltages did not change (anything you do to the secondary coil is not supposed to affect the voltage of the primary coil), A1 should also increase.

Now this is where my confusion is. How can the voltage of the primary coil remain the same when the current increases? By Ohms law, shouldn't the voltage of the primary coil also increase?

Thanks in advance.