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The magnetic field B within the solenoid...

The magnetic field B within the solenoid having n turns per unit length and carrying a current I is given by

A

`mu_0 n I`

B

`4 pi mu_0 n I`

C

`nI`

D

`mu_0 n Il`

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • The magnetic field B with in the solenoid having n turns per metre length and carrying a current of i ampere is given by

    A
    `(mu_(0))/e`
    B
    `mu_(0)ni`
    C
    `4pimu_(0)ni`
    D
    `ni`

  • The magnetic field on the axis of a long solenoid having n turns per unit length and carrying a current is

    A
    `mu_(0)ni`
    B
    `mu_(0)n^(2)i`
    C
    `mu_(0)ni^(2)`
    D
    none of these

  • 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_0nl(1-Chi)`
    B
    `mu_0nlchi`
    C
    `mu_0nl^2(1+chi)`
    D
    `mu_0nl(1+chi)`

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