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  4. In the given circuit, all the capacitors are initially uncharged. After closing the switch S1 for a long time and suddenly S2 is also closed and kept closed for a long time. The total heat produced after closing S2 (in joules) is

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Q. In the given circuit, all the capacitors are initially uncharged. After closing the switch $S_{1}$ for a long time and suddenly $S_{2}$ is also closed and kept closed for a long time. The total heat produced after closing $S_{2}$ (in joules) is _____Physics Question Image

Electrostatic Potential and Capacitance

Solution:

When switch $S_{2}$ is closed, due to symmetry no charge will flow through $S_{2}$.