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The magnetic field between the plates of...

The magnetic field between the plates of a capacitor when `r gt R` is given by-

A

`(mu _(0) I _(D) r)/(2pi R ^(2))`

B

`(mu_(0) I _(D))/(2pi R)`

C

`(mu _(0) I _(D))/(2pi r )`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
C
Using Amper.s circuital law,
`oint vecB.dvecl=mu_(0) I D`
`or B 2pi r = mu_(0) I _(D) or B = mu _(0) I _(D) // 2pi r `
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Knowledge Check

  • Magnetic field in space between the plates is

    A
    `(1)/(2)mu_(0)j^(2)`
    B
    zero
    C
    `mu_(0)j`
    D
    `2mu_(0)j`

  • Displacement current is produced between the plates of a capacitor when potential difference between the plates

    A
    is maximum
    B
    is minimum
    C
    is zero
    D
    is changing with time

  • Displacement current is present between the plates of capacitor when the charge on the capacitor is

    A
    Constant
    B
    Maximum
    C
    Changing
    D
    Both (1) &(3)

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