CapacitanceHard

Question

In an isolated parallel plate capacitor of capacitance C the four surfaces have charges Q1,Q2,Q3 and Q4 as shown in the figure. The potential difference between the plates is : 
                                           

Options

A.
B.
C.
D.[(Q1 + Q2) − (Q3 − Q4)]

Solution


Charge on outer surfaces are equal so Q1 = Q3 + Q2 + Q4 and Q1 + Q2 + Q3 = Q4
V =   or  V=
Adding (i) and (ii)
Q1 = Q4     and     Q2 = − Q3

Create a free account to view solution

View Solution Free
Topic: Capacitance·Practice all Capacitance questions

More Capacitance Questions

A capacitor of capacitance 5 μF is connected as shown in the fig. The internal resistance of the cell is 0.5 Ω...A parallel plate capacitor has capacitance C , when there is vacuum within the parallel plates.A sheet having thickness ...The magnitude of charge in steady state on either of the plates of condenser C in the adjoining circuit is-...Time constant of a series R-C circuit is :-...Two resistors having equal resistances are joined in series and a current is passed through the combinations. Neglect an...