As shown in the figure, two parallel-plate capacitors having equal plate area 200 cm² are connected with a ≠ b. The equivalent capacitance is xε₀ F. Find x.

Question

G1 Physics · Accepted Answer

Use Q = CV, U = ½CV² and C = εA/d; reduce the capacitor network by series/parallel combination and apply charge conservation where a node is isolated. Substituting the given values gives 5.