Question

Which equations can be used to calculate the electric potential energy stored in a capacitor? Check all that apply. U = QV U = CV U = U = CV2 U = U = QV2

Answer 1

There are different ways to calculate the electric potential energy stored in a capacitor.
 Among these forms we have:
 Form 1:
 U = (CV ^ 2) / 2
 Form 2:
 U = (Q ^ 2) / 2C
 Form 3:
 U = (QV) / 2
 Where,
 Q: load
 C: capacitance
 V: voltage.
 Answer:
 U = (CV ^ 2) / 2
 U = (Q ^ 2) / 2C
 U = (QV) / 2

Answer 2

U=1/2QV

U=1/2CV^2

U=Q^2/2C