In an isolated parallel plate capacitor of capacitance C the four surfaces have charges Q 1 , Q 2 , Q 3 and Q 4 as shown in the figure. The potential difference between the plates is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(b, c)
Charge on outer surfaces are equal so Q 1 = Q 3 + Q 2 + Q 4 .........(i)
and Q 1 + Q 2 + Q 3 = Q 4 .........(ii)
V = 
or V = 
V = 
or V = 
Adding (i) and (ii)
Q 1 = Q 4 and Q 2 = – Q 3
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
The capacity of a parallel plate condenser is . When a glass plate is placed between the plates of…
A capacitor is charged by using a battery which is then disconnected. A dielectric slab is then sli…
The energy of a charged capacitor is given by the expression ( = charge on the conductor and C = i…
The capacity of a condenser is farad and its potential is . The energy released on discharging it…
The insulated spheres of radii and having charges and respectively are connected to each other.…
In a charged capacitor, the energy resides