Question
A 12 pF capacitor is connected to a 50 V battery, the electrostatic energy stored in the capacitor in nJ is
A 12 pF capacitor is connected to a 50 V battery, the electrostatic energy stored in the capacitor in nJ is
A. 15
Electrostatic energy stored U= 1 2 C V^2 = 1 2 12 10^ -12 (50)^2 =6 25 10^ -10 =15 10^ -9 ~J =15 ~nJ
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