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The magnetic field (B) inside a long sol...

The magnetic field (B) inside a long solenoid having n turns per unit length and carrying current / when iron core is kept in it is `(mu_o` = permeability of vacuum, `chi` = magnetic susceptibility)

A

`mu_(0) nI(1 - chi)`

B

`mu_(0)nI chi`

C

`mu_(0)nI^(2)(1+chi)`

D

`mu_(0)nI(1+chi)`

Text Solution

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The correct Answer is:
D
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