(II) In the capacitance bridge shown in Fig. 24–28, a voltage V₀ is applied and the variable capacitor C₁ is adjusted until there is zero voltage between points a and b as measured on the voltmeter (). Determine the unknown capacitance C_x if C₁ = 8.9 μF and the fixed capacitors have C₂ = 16.0 μF and C₃ = 4.8 μF No charge flows through the voltmeter when it reads zero.)

In Fig. E$24.20$, $C_1=6.00$ $\mu$F, $C_2=3.00$ $\mu$F, and $C_3=5.00$ $\mu$F. The capacitor network is connected to an applied potential $V_{ab}$.

(a) After the charges on the capacitors have reached their final values, the charge on $C_2$ is $30.0$ mC. What are the charges on capacitors $C_1$ and $C_3$?

(b) What is the applied voltage $V_{ab}$?

Figure E$24.14$ shows a system of four capacitors, where the potential difference across ab is $50.0$ V. How much charge is stored in each of the $10.0$-$\mu$F and the $9.0$-$\mu$F capacitors?

Figure E$24.14$ shows a system of four capacitors, where the potential difference across ab is $50.0$ V. How much charge is stored by this combination of capacitors?

(I) The variable capacitor in the tuner of an AM radio has a capacitance of 1800 pF when the radio is tuned to a station at 550 kHz. What must the capacitance be for a station near the other end of the dial, 1610 kHz?

What is charge and voltage across each capacitor below?

What is the voltage of the battery below?

What is the charge on the 5 F capacitor? (hint:be careful with series vs parallel)