# There are 100 turns in the primary winding of the transformer, and 20 in the secondary winding.

October 2, 2021 | education

| **There are 100 turns in the primary winding of the transformer, and 20 in the secondary winding. Adjust the transformation ratio.**

To calculate the value of the transformation ratio of the taken transformer, we apply the formula: k = Nп / Nв.

Variables: Nп – turns in the primary winding (Nп = 100 pcs.); NV – turns in the secondary winding (NV = 20 pcs.).

Let’s make a calculation: k = Np / Nv = 100/20 = 5.

Answer: The transformation ratio, according to the calculation, is 5.

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