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If the charge stored in a capacitor is 4C and the value of capacitance is 2F, calculate the energy stored in it.(a) 2J(b) 4J(c) 8J(d) 16JI have been asked this question in examination.This interesting question is from Energy Stored in a Charged Capacitor in portion Capacitance and Capacitors of Basic Electrical Engineering

Answer»

Correct answer is (b) 4J

Easy explanation: The expression for finding the VALUE of ENERGY is:

U=Q^2/2C = 4*4/(2*2) = 4J.



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