CUET · PHYSICS · PYQ PAPER 2023
Ferro-magnetic materials used in transformer core must have :
- A low permeability and high hysteresis loss
- B high permeability and low hysteresis loss
- C high permeability and high hysteresis loss
- D low permeability and low hysteresis loss
Answer & Solution
Correct Answer
(B) high permeability and low hysteresis loss
Step-by-step Solution
Detailed explanation
High permeability is required to easily conduct magnetic flux and improve transformer efficiency. Low hysteresis loss (indicated by a thin hysteresis loop) is essential to minimize energy wasted as heat during the rapid magnetizing and demagnetizing cycles. B) high permeability…
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