If the dielectric constant and dielectric strength be denoted by $k$ and $x$ respectively, then a material suitable for use as a dielectric in a capacitor must have

  • A

    High $k$ and high $x$

  • B

    High $k$ and low $x$

  • C

    Low $k$ and low $x$

  • D

    Low $k$ and high $x$

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