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naz edited Jun 26, 2026, 11:43 AM

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		+	### Statement
		+
		+	$11.3.20.$ [Insert the problem statement]
		+
		+	### Solution
		+
		+	The figure shows the so-called autotransformer, its feature is that the input and output windings are combined into one.
		+
		+	The essence of the operation of such a transformer is as follows: the input voltage is applied to a fixed section of the winding, let the number of turns on it be N_1. The output voltage is removed between the common wire and terminal K, denote the number of turns between them N_2.
		+
		+	The bottom line is that the output voltage increases proportionally as N_2 increases.:
		+
		+	$$U = \frac{N_2}{N_1} U_0$$
		+
		+	Therefore, when moving the terminals to the left, the output voltage will increase.
		+
		+
		+	#### Answer
		+
		+	[Insert a concise answer or boxed result]

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			### Statement

			$11.3.20.$ [Insert the problem statement]

			### Solution

			The figure shows the so-called autotransformer, its feature is that the input and output windings are combined into one.

			The essence of the operation of such a transformer is as follows: the input voltage is applied to a fixed section of the winding, let the number of turns on it be N_1. The output voltage is removed between the common wire and terminal K, denote the number of turns between them N_2.

			The bottom line is that the output voltage increases proportionally as N_2 increases.:

			$$U = \frac{N_2}{N_1} U_0$$

			Therefore, when moving the terminals to the left, the output voltage will increase.


			#### Answer

			[Insert a concise answer or boxed result]