Two Transformers, voltage before and after on two different coils

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SUMMARY

The discussion revolves around calculating the primary voltage of a transformer when the secondary voltage is altered. Given a transformer with a primary voltage of 120 V and a secondary voltage of 6 V, the user seeks to determine the primary voltage when the secondary voltage is changed to 8 V. The relevant equation used is V2 = (N2/N1)V1, leading to the conclusion that the primary voltage would be 160 V when the secondary voltage is increased to 8 V.

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  • Understanding of transformer voltage relationships
  • Familiarity with the equation V2 = (N2/N1)V1
  • Basic knowledge of electrical circuits
  • Proportional reasoning in physics
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codytanner16
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Homework Statement



We have a transformer with the primary coil carries 120 V and the secondary coil having 6 V. If you change the second coil to have 8V, what is the voltage in the primary coil?

Homework Equations



My textbook does not have any equations that involve just the voltage of transformers.

I do have V2=(N2/N1)V1

Or is just a set up of proportions? Like V1/V2=V1/V2

The Attempt at a Solution



120/6=x/8

so x=160?
 
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codytanner16 said:

Homework Statement



We have a transformer with the primary coil carries 120 V and the secondary coil having 6 V. If you change the second coil to have 8V, what is the voltage in the primary coil?

Homework Equations



My textbook does not have any equations that involve just the voltage of transformers.

I do have V2=(N2/N1)V1

Or is just a set up of proportions? Like V1/V2=V1/V2

The Attempt at a Solution



120/6=x/8

so x=160?

Yes, I think that's the idea. It's not really changing the coil, it's changing the input voltage, but I don't know how else to answer it.
 
Last edited:

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