The next three questions concern the same physical situation. A battery V-15V is

Question

The next three questions concern the same physical situation. A battery V-15V is connected to three Capacitors in the configuration shown below, The Capacitance of the capacitors are C-301, Cz-201. C3=10F C1 C2 C3 14. What is the charge on one of the plates of C1? (a) Qi= 125 C (b) Q1-1 66pC (c) Q1-225 C 15. Compute the total stored energy in all of the capacitors. (a) Ut 2.5 x 10-4 (b) Uce= 6.4x10-4 J Uit = 9.4 x 10" J (c) (d) Uot-1.7 x 103 J (e) Ueet 6.0x 10*J What is the change in potential across Cs?

Explanation / Answer

14) equivalent capacitance of circuit= 15 microF

Q= CV

Q= 15×15= 225microC

Option c is correct

15) total energy = 1/2 CVV

= 1/2 ×15×15×15

= 1687.5

= 1.7×10^-3 joules

Option d is correct

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