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If the dielectric constant and dielectir...

If the dielectric constant and dielectirc strength be denoted by `K` and `x` respectively, then a meterial suitable for use as a dielectric in a capacitor must have

A

high K and high X

B

high K and low K

C

low K and high K

D

low K and low X

Text Solution

Verified by Experts

The correct Answer is:
A
The material suitable for using as a dielectric must have high dielectric strenght X and large dielectric constant K.
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Knowledge Check

  • The dielectric constant k for an insulator cannot be

    A
    4
    B
    5
    C
    9
    D
    infinity

  • For metals the value of dielectric constant (K) is

    A
    One
    B
    Infinity
    C
    zero
    D
    Two

  • In an isolted, charged, parllel-plate air capacitor, the charge per unit area on each plate has a magnitude of sigma . A dielectric slab having the dielectric constant K is now introduced between the plates. The induced charge per unit area on the surface of the dielectric will have magnitude.

    A
    `(sigma)/(K)`
    B
    `sigma(K-1)`
    C
    `sigma(1-(1)/(K))`
    D
    `(sigma)/(K+1)`

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