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Calculate the energy in the 4F capacitor.(a) 128kJ(b) 1.28kJ(c) 12.8kJ(d) 1280JThe question was posed to me by my school principal while I was bunking the class.Question is from Energy Stored in a Charged Capacitor topic in section Capacitance and Capacitors of Basic Electrical Engineering

Answer» RIGHT OPTION is (C) 12.8kJ

The BEST explanation: From the expression:

WD = CV^2/2 = 4*80^2/2 = 12800J = 12.8kJ.


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