BackTwo capacitors are identical in size and shape, but one is filled with a dielectric material of dielectric constant while the other is empty ( between the plates). If both are connected to the same voltage source, which statement is correct about their capacitances?
If three capacitors with capacitances , , and are connected in series, what is the expression for the total capacitance of the combination?
A capacitor is charging through a resistor using a battery. What is the time constant of this RC circuit?
Three capacitors with capacitances , , and are connected in series. What is the equivalent capacitance of the combination?
Which of the following correctly expresses the capacitance of an air-filled parallel plate capacitor with plate area and separation ?
(II) Consider the circuit shown in Fig. 26–67, where all resistors have the same resistance R. At t = 0, with the capacitor C uncharged, the switch is closed. At t = ∞, what is the potential difference across the capacitor?
Which of the following will increase the capacitance of a parallel-plate capacitor?
If you have two identical capacitors, each with capacitance , and an external potential source, what is the equivalent capacitance when the capacitors are connected in series?
When two capacitors are connected in series, which of the following quantities must be the same for both capacitors?
A switch that connects a battery to a 10 μF capacitor is closed. Several seconds later you find that the capacitor plates are charged to ±30 μC. What is the emf of the battery?
What is the capacitance of the two metal spheres shown in FIGURE EX26.22?
Two 2.0 cm×2.0 cm metal electrodes are spaced 1.0 mm apart and connected by wires to the terminals of a 9.0 V battery. What are the charge on each electrode and the potential difference between them?
Two 3.0-cm-diameter aluminum electrodes are spaced 0.50 mm apart. The electrodes are connected to a 100 V battery. What is the capacitance?