# Coils of transformer

The primary coil of the transformer has 400 turns. A current of 1.5 A passes through it and is connected to a voltage of 220 V. For the secondary coil, find the voltage, current, and a number of turns if the transformation ratio k = 0.1.

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#### You need to know the following knowledge to solve this word math problem:

**algebra**- expression of a variable from the formula
**basic functions**- inverse relationship
- direct relationship

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