Question

write down the operating principle of auto transformer with neat circuit diagram.​

Answer 1

Answer:

principle of autotransformer

Explanation:

Now consider the autotransformer circuit diagram shown below. As compared to two winding transformers as shown in Figure 1, Autotransformer has single winding. When an alternating supply is given to the primary circuit, because of Faraday’s Law of electromagnetic Induction, an emf is induced in the primary part. Since the magnetic field is alternating in nature, and conductors are stationary.The induced emf in primary produces a flux, which is called as primary winding flux. This flux links the secondary winding and induces an emf on secondary winding due to mutual induction. Hence emf is transferred in the secondary winding. Based on a number of turns on the secondary side, the magnitude of induced emf is determined.