An air filled parallel-plate capacitor is connected to a 12 Volts battery, the battery is disconnected when it is fully charged to 7.3 nC. The separation distance between the plates is d1= 8 cm. Now, If the plates are moved to a new distance d23D3 cm. the new energy stored in the capacitor is O a. 13.14 nJ O b. 8.21 nJ O. 1.64 nJ O d. 10.96 nJ O e. 5.47 nJ f 16 42nl
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