class 12

Missing

JEE Advanced

N dielectics are introduced in series in a capacitor of thickness D. Each dielectric have width d=D/N & dielectric constant of $m_{th}$ dielectric is given by $K_{m}=K(1+m/N).$ [Ngtgt$10_{3}$, Area of plates =A] . Net capacitance is given by $αDln2Kϵ_{0}A $. find value of $α$