A dielectric slab of dielectric constant $K$ is placed between the plates of a parallel plate capacitor carrying charge $q$. The induced charge $q^{\prime}$ on the surface of slab is given by
$q^{\prime}=q-\frac{q}{K}$
$q^{\prime}=-q+\frac{q}{K}$
$q^{\prime}=q\left[\frac{1}{K}+1\right]$
$q^{\prime}=-q\left(1+\frac{1}{K}\right)$
An air capacitor is connected to a battery. The effect of filling the space between the plates with a dielectric is to increase
A parallel plate air capacitor has a capacitance $C$. When it is half filled with a dielectric of dielectric constant $5$, the percentage increase in the capacitance will be.....$\%$
How does the polarised dielectric modify the original external field inside it ?
A parallel plate capacitor has capacitance $C$. If it is equally filled with parallel layers of materials of dielectric constants $K_1$ and $K_2$ its capacity becomes $C_1$. The ratio of $C_1$ to $C$ is
A combination of parallel plate capacitors is maintained at a certain potential difference When a $3\, mm$ thick slab is introduced between all the plates, in order to maintain the same potential difference, the distance between the plates is increased by $2.4\, mm$. Find the dielectric constant of the slab.