capacitors

Consider this situation:
A spherical shell of radius a is earthed. A concentric spherical shell of radius b surrounds it and is given a charge Q.
Can this system be a capacitor?
If yes then find its capacitance, if no then explain

7 Answers

33
Abhishek Priyam ·

yes... why not?

find the potential difference between shells.
then u will get capacitance.

106
Asish Mahapatra ·

but a system is a capacitor if there is equal and opposite charge on both the plates. Here i dont think ull get equal and oposite charges

33
Abhishek Priyam ·

A single shell having charge can also act as capacitor.

106
Asish Mahapatra ·

arey haan. but while solving we'll have two capacitors naa? one between the two shells and the other between the outer shell and the shell at ∞. So we'll calculate net capacitance as a series combination rite?

62
Lokesh Verma ·

asish i think we had solved this question once in QOD..

106
Asish Mahapatra ·

sir can u give me the link please?

62
Lokesh Verma ·

asish .. i think this one

http://targetiit.com/iit_jee_forum/posts/5_02_09_capacitance_of_spherical_shells_2127.html

Your Answer

Close [X]