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Physics · PYQ NEET UG 2026
हिन्दीThree identical capacitors $P$, $Q$ and $S$, each of the capacitance $C$, are connected to a battery of voltage $V$, as shown in the figure. If the energy stored in the capacitor $P$ and total energy stored in the system are $U_P$ and $U_T$, respectively, then the ratio $\frac{U_P}{U_T}$ is :
Correct answer · Option 4
$1/6$
Explanation
Capacitors P and Q are in series, equivalent $C_{PQ} = C/2$, in parallel with S. Voltage across P is $V/2$. $U_P = \frac{1}{2} C (V/2)^2 = \frac{1}{8} CV^2$. Total equivalent capacitance $C_T = C/2 + C = 3C/2$, $U_T = \frac{3}{4}CV^2$. Ratio $\frac{U_P}{U_T} = \frac{1/8}{3/4} = 1/6$.
