Bissoy.com
Doctors Medicines MCQs Q&A

  1. Coils
  2. Inslutating materials
  3. Magnetic core
  4. Tank and cooling system
4 views

1 Answers

Option 3 : Magnetic core

Construction of Transformer Core:

  • In all types of transformers, the core is constructed by assembling (stacking) laminated sheets of steel, with a minimum air gap between them (to achieve a continuous magnetic path).
  • The steel used is having high silicon content and is sometimes heat-treated, to provide high permeability and low hysteresis loss. Laminated sheets of steel are used to reduce eddy current loss.
  • The sheets are cut in the shape of E, I, and L. To avoid high reluctance at joints, laminations are stacked by alternating the sides of the joint.
  • That is, if the joints of the first sheet assembly are at the front face, the joints of the following assembly are kept at the back face.
4 views

Related Questions

In the following question, the 1st and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/ passage is split into four parts and named P, Q, R and S. These four parts are not given in their proper order. Read the sentence/ passage and find out which of the four combinations is correct. 1. More than half of the world’s population lives in urban areas. P. Due to the ongoing urbanisation and growth of the world’s population, there will be about 2.5 billion more people added to the urban population by 2050. Q. The world’s urban areas are highly varied, but many cities and towns are facing problems such as a lack of jobs, R. homelessness and expanding squatter settlements, inadequate services and infrastructure, poor health and educational services and high levels of pollution. S. This will mainly happen in Africa and Asia. 6. The situation is expected to get worse.?
1 Answers 4 Views