Two identical capacitors are joined in parall | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Let the capacitance of each capacitor be $C$. Initially,they are connected in parallel and charged to potential $V$. The charge on each capacitor

Vedclass · Accepted Answer

The potential difference across the free plates becomes $2\,V$.

Vedclass · Answer

(D) Let the capacitance of each capacitor be $C$. Initially,they are connected in parallel and charged to potential $V$. The charge on each capacitor is $Q = CV$.When they are separated and connected in series such that the positive plate of one is connected to the negative plate of the other,the total charge on the connected plates is $+Q + (-Q) = 0$.Since the plates are isolated,the charge on each capacitor remains $Q = CV$.In the series combination,the potential difference across each capacitor is $V$. Since they are connected in series with opposite polarities,the total potential difference across the free plates is $V + V = 2\,V$.

Two identical capacitors are joined in parallel,charged to a potential $V$ and then separated and then connected in series,i.e.,the positive plate of one is connected to the negative plate of the other. What happens to the system?

Similar Questions

Two hollow metallic spheres of radii $20 \ cm$ and $10 \ cm$ each carry a charge of $150 \ \mu C$. If they are connected by a conducting wire,the common potential is ...... $V$.

$A$ $10 \mu F$ capacitor is charged by a $100 V$ battery. It is disconnected from the battery and is connected to another uncharged capacitor of capacitance $30 \mu F$. During this process,the electrostatic energy lost by the first capacitor is

$A$ capacitor of capacitance $10\,\mu F$ has been charged to $100\,V$. It is now connected to another uncharged capacitor in parallel. The common potential becomes $40\,V$. The capacitance of the other capacitor is......$\mu F$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module