Along solenoid having 1000 turns per meter carries a current of 1 A . It has a soft iron core of μ_ r =1000 . The core is heated beyond the Curie temperature (T_ C ) . Then

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Olympiad workbook · NSEP · Magnetic Properties of Matter

Along solenoid having 1000 turns per meter carries a current of 1 A...

Along solenoid having 1000 turns per meter carries a current of 1 A . It has a soft iron core of

\mu_{\mathrm{r}}=1000

. The core is heated beyond the Curie temperature \left(\mathrm{T}_{\mathrm{C}}\right)

. Then

AThe H field in the solenoid is nearly unchanged but the B field decreases drastically.
BThe H and B fields in the solenoid are nearly unchanged.
CThe magnetization in the core reverses direction.
DThe magnetization in the core diminishes by a factor of about $10^8$

D. The magnetization in the core diminishes by a factor of about $10^8$

No Solution