A 20 F capacitor is charged to 5 V and isolated. It is then connected in parallel with an uncharged 30 F capacitor. The decrease in the energy of the system will be
A
25 J
B
C
125 J
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Charge stored on 20 F capacitor 
When 20 
capacitor is connected to 30 F capacitor,
Energy of the system will be 
Energy before isolation 
Therefore, decrease in energy 
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
An electron moving with the speed per sec is shot parallel to the electric field of intensity . …
Electric charge is uniformly distributed along a along straight wire of radius 1 mm. The charge per…
A charge q is enclosed by an imaginary Gaussian surface.
If radius of surface is increasing at a r…
What is the electric flux linked with closed surface?
If aspherical conductor comes out from the closed surface of the sphere then total flux emitted fro…
Consider the charge configuration and spherical Gaussian surface as shown in the figure. When calcu…