Start Free Mock LoginAlready registered? Login here

Physics - Capacitor Question with Solution | TestHub

PhysicsCapacitorCapacitanceMedium2 minQB

PhysicsMediumsingle choice

To make a parallel plate capacitor, two copper plates, a sheet of mica (thickness $t = 0.1 mm$ , $K = 5.4$ ), a sheet of glass (thickness $t = 0.2 mm$ , $K = 7$ ), and a slab of paraffin (thickness $t = 1.0 c m$ , $K = 2$ ) are available. To obtain the largest capacitance, which sheet should be placed between the copper plates?

Options:

Answer:

Solution:

For fixed plate area:

$C = \frac{K ϵ _{0} A}{d}$

Compare K/d in inverse metres.

$(\frac{K}{d})_{mica} = 54000$

$(\frac{K}{d})_{glass} = 35000$

$(\frac{K}{d})_{paraffin} = 200$

Mica gives the greatest capacitance. Answer A.

Stream:JEESubject:PhysicsTopic:CapacitorSubtopic:Capacitance

⏱ 2mℹ️ Source: QB

Doubts & Discussion

Loading discussions...

Physics - Capacitor Question with Solution | TestHub

Options:

Doubts & Discussion

JEE Main 2028 (Class 11)

JEE Main 2027 (Class 12+)