There are two identical ideal transformers with the same transformation coefficient of 1 : 3. The primary winding of one of them is connected in series with the secondary of the second, and the free ends of these windings are connected to the AC network with a voltage of 100 V. The secondary winding of the first transformer is connected in series with the primary winding of the second. Determine the amplitude of the AC voltage between the other ends of the windings.
11.4 AC electrical circuits