A capacitor is charged to a voltage of and a capacitor is charged to a voltage of

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

A 2 μF2\,\mu\text{F} capacitor C1C_1 is charged to a voltage of 100 V100\,\text{V} and a 4 μF4\,\mu\text{F} capacitor C2C_2 is charged to a voltage of 50 V50\,\text{V}. The capacitors are then connected in parallel. What is the loss of energy due to the parallel connection? (a) 1.7 J1.7\,\text{J} (b) 0.17 J0.17\,\text{J} (c) 1.7×10−2 J1.7\times10^{-2}\,\text{J} (d) 1.7×10−3 J1.7\times10^{-3}\,\text{J}

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