Advertisement Remove all ads

Three Circuits, Each Consisting of a Switch 'S' and Two Capacitors, Are Initially Charged, as Shown in the Figure. After the Switch Has Been Closed, in Which Circuit Will the Charge on the Left-hand - Physics

Advertisement Remove all ads
Advertisement Remove all ads
Advertisement Remove all ads
Short Note

Three circuits, each consisting of a switch 'S' and two capacitors, are initially charged, as shown in the figure. After the switch has been closed, in which circuit will the charge on the left-hand capacitor
(i) increase,
(ii) decrease, and
(iii) remains the same? Give reasons.

Advertisement Remove all ads

Solution

When charged capacitors are connected to each other then the charge will flow from the capacitor with higher potential towards the capacitor with lower potential until a common potential is reached.

(a) In fig. (a) the potential of both the capacitor is same so the charge on left hand capacitor remains the same.

(b) In fig. (b) the potential of left hand capacitor is high so charge from 6Q to 3Q. Therefore charge on left hand capacitor will decrease. (c) In fig.

(c) the potential of left hand capacitor is low so charge will flow from 3Q to 6Q. Therefore charge on the left-hand capacitor will increase.

Concept: Capacitors and Capacitance
  Is there an error in this question or solution?

Video TutorialsVIEW ALL [2]

Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×