Mathematics · Magnetic Properties of Matter
A long solenoid with 1000 turns m-1 has a core material with relative permeability 500 and volume 103 cm3. If the core material is replaced by another material having a relative permeability of 750 with the same volume, maintaining the same current of 0.75 A in the solenoid, the fractional change in the magnetic moment of the core would be approximately x499. Find the value of x.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1500
- 2375
- 3250✓
- 4125
Correct answer
250
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