Which of the following is expected to have the maximum permeability ?
Correct answer: D. Ebonite
- A. Brass
- B. Copper
- C. Zinc
- D. Ebonite
Explanation
Ebonite is essentially non-magnetic, with permeability approximately equal to that of free space. The listed metals are weakly diamagnetic and have permeability slightly below unity, making ebonite the largest comparatively.
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