The parallel combination of two air filled parallel plate capacitors of capacitance…

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

The parallel combination of two air filled parallel plate capacitors of capacitance

C

and

nC

is connected to a battery of voltage,

V

. When the capacitors are fully charged, the battery is removed and after that a dielectric material of dielectric constant

K

is placed between the two plates of the first capacitor. The new potential difference of the combined system is: (1)

\frac{nV}{K+n}

(2)

V

(3)

\frac{V}{K+n}

(4)

\frac{(n+1)V}{(K+n)}