Determine the number of turns of the secondary winding of the transformer if the primary winding is designed

Determine the number of turns of the secondary winding of the transformer if the primary winding is designed for a voltage of U = 6000 V and has 1200 turns, and the secondary for U = 100 V

A transformer is an electrical device designed to change voltage. It can both reduce tension and increase. On the winding, where there are more turns, the voltage is higher. The dependence of the voltage on the number of turns is called the transformation ratio.
w1 / U1 = w2 / U2 = k, where w1 is the number of turns of the primary winding, U1 is the voltage in the primary winding, w2 is the number of turns of the secondary winding, U2 is the voltage of the secondary winding, k is the transformation ratio.
Let us express w2 from this expression:
w2 = w1 * U2 / U1
Substitute the numbers:
w2 = w1 * U2 / U1 = 1200 * 100/6000 = 20
Answer: there are 20 turns in the secondary winding.