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The plates of parallel plate capacitor a...

The plates of parallel plate capacitor are charged upto `100V`. A `2mm` thick dielectric slab is inserted between the plates.Then to maintain the same potential difference,the distance between the plates is increased by `1.6mm`. The dielectric constant of the slab is.

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Knowledge Check

  • The plates of a parallel plate capacitor are charged to 100V. Then a 4mm thick dielectric slab is inserted between the plates and then to obtain the original potential difference , the distance between the system plates is increased by 2.00 mm. the dielectric constant of the slab is

    A
    5.4
    B
    2.2
    C
    `2.0`
    D
    `2.6`

  • The plates of a parallel plate capacitor are charged up to 100 v . Now, after removing the battery, a 2 mm thick plate is inserted between the plates Then, to maintain the same potential deffernce, the distance betweem the capacitor plates is increase by 1.6 mm . The dielectric canstant of the plate is .

    A
    `5`
    B
    `1.25`
    C
    `4`
    D
    `2.5`

  • A parallel plate capacitor in first charged and then a dielectric slab is introduced between the plates, the quantity that remains unchanged is

    A
    Charge Q
    B
    Potential V
    C
    Capacity C
    D
    Energy U

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