Lamination of the transformer core is made of:
Correct answer: A. Silicon steel
- A. Silicon steel
- B. Soft iron
- C. Aluminium
- D. Cast steel
Explanation
Silicon steel is used for transformer core laminations because it has low hysteresis loss, which helps in reducing energy losses in the transformer. It also has high permeability, allowing it to efficiently channel magnetic fields. Although soft iron has high permeability, it causes higher hysteresis losses, making it less efficient than silicon steel. Aluminium is not suitable as a core material due to its poor magnetic properties, though it is used as a winding material. Cast steel is also unsuitable due to higher magnetic losses compared to silicon steel.
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