- Chemical Engineering Basics - Section 1
- Chemical Engineering Basics - Section 2
- Chemical Engineering Basics - Section 3
- Chemical Engineering Basics - Section 4
- Chemical Engineering Basics - Section 5
- Chemical Engineering Basics - Section 6
- Chemical Engineering Basics - Section 7
- Chemical Engineering Basics - Section 8
- Chemical Engineering Basics - Section 9
- Chemical Engineering Basics - Section 10
- Chemical Engineering Basics - Section 11
- Chemical Engineering Basics - Section 12
- Chemical Engineering Basics - Section 13
- Chemical Engineering Basics - Section 14
- Chemical Engineering Basics - Section 15
- Chemical Engineering Basics - Section 16
- Chemical Engineering Basics - Section 17
- Chemical Engineering Basics - Section 18
- Chemical Engineering Basics - Section 19
- Chemical Engineering Basics - Section 20
- Chemical Engineering Basics - Section 21
- Chemical Engineering Basics - Section 22
- Chemical Engineering Basics - Section 23
- Chemical Engineering Basics - Section 24
- Chemical Engineering Basics - Section 25
- Chemical Engineering Basics - Section 26
- Chemical Engineering Basics - Section 27
- Chemical Engineering Basics - Section 28


Chemical Engineering Basics - Engineering
Q1: Transformer cores are normally made fromA soft ferrites
B high purity iron
C grain oriented Fe-Si alloy
D Al-Ni-Co alloy
ANS:C - grain oriented Fe-Si alloy Transformer cores are typically made from grain-oriented Fe-Si (iron-silicon) alloy. Grain-oriented electrical steel is a specially processed form of silicon steel that exhibits superior magnetic properties, making it ideal for transformer cores. The silicon content in the alloy helps to reduce energy losses due to eddy currents by increasing the electrical resistance of the material. Additionally, the grain orientation process aligns the crystal grains in the direction of the magnetic field, further enhancing the magnetic properties and reducing core losses. Soft ferrites are commonly used in high-frequency applications such as inductors and transformers operating at frequencies above a few kHz. High-purity iron and Al-Ni-Co (aluminum-nickel-cobalt) alloys are not typically used for transformer cores due to their inferior magnetic properties compared to grain-oriented Fe-Si alloy. |


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