Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET2015PhysicsCapacitanceActual

A parallel plate air capacitor has capacity C , distance of separation between plates is d and potential difference V is applied between the plates. The force of attraction between the plates of the capacitor is

Options

  1. AC V 2 2 d .
  2. BC V 2 d .
  3. CC 2 V 2 2 d 2 .
  4. DC 2 V 2 2 d .

Correct answer

A. C V 2 2 d .

Step-by-step solution

Attraction force between the plates, F = q 2 2 A ε 0 where q = C V and C = ε 0 A d ⇒ F = C 2 V 2 2 C d = C V 2 2 d

Practice Capacitance on Quantrex Academy →

More from Capacitance

A parallel plate capacitor of area A, plate separation d and capacitance C is filled with four dielectric materials having dielectric constants k₁ , k₂ , k₃ and k₄ as shown in figu 2026Three identical parallel plate air capacitors are connected in series to a battery of e.m.f. V. If two capacitors are completely filled with dielectric material of constant k, then 2026Four identical capacitors are joined in series, across a battery of 20 V . The capacitors are separated and then connected in parallel. The potential difference across the parallel 2026The equivalent capacitance between 'P' and 'Q' is [A-area of each plate, d-separation between the plates, ₀ -permittivity of free space] 2026The air capacitor has a capacitance of 2 F. Now the space between two plates of capacitor is filled with two dielectrics as shown in the figure. The capacitance of the capacitor is 2026A parallel-plate air capacitor has a capacity ' C ', distance with a separation ' x ', a dielectric material with a dielectric constant ' k ' between plates, and a potential differ 2026A series combination of 10 capacitors, each of value ' C₁ ' is charged by a source of potential difference ' 4V '. When another parallel combination of 8 capacitors, each of value 2026Two capacitors of capacity C and C/3 are connected to a battery of voltage V as shown. The work done in charging both the capacitors fully is 2026 Full Capacitance list All NEET PYQs