CUET Preparation Today
Case: Read the below passage and answer accordingly Electromagnetic induction is defined as the production of an electromotive force across an electric conductor in a changing magnetic field. The discovery of induction was done by Michael Faraday in the year 1831. Electromagnetic induction finds many applications such as in electrical components which include transformers, inductors, and other devices such as electric motors and generators. |
| Which of the following is usually taken to make the core of a transformer? |
Iron Aluminum Soft iron Alnico |
| Soft iron |
| The core needs to be magnetized and demagnetized frequently during the working of a transformers. Soft iron is used as core. Since it easy to magnetize and demagnetize with less energy loss. |
