MHT CET · Physics · Magnetic Properties of Matter
The magnetic field ( \(B\) ) inside a long solenoid having \(n\) turns per unit length and carrying current \(I\) when iron core is kept in it is ( \(\mu_0=\) permeability of vacuum, \(\chi=\) magnetic susceptibility)
- A \(\mu_0 ~n I(1-\chi)\)
- B \(\mu_0~ n I \chi\)
- C \(\mu_0 ~n I^2(1+\chi)\)
- D \(\mu_0 ~n I(1+\chi)\)
Answer & Solution
Correct Answer
(D) \(\mu_0 ~n I(1+\chi)\)
Step-by-step Solution
Detailed explanation
\(B=\mu_0~ n I \quad(1+\chi)\)
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