An air-filled parallel-plate capacitor is connected to a battery and they allowed to charge up now a slab of dielectric material is placed between the plate of a capacitor while the capacitor is still connected to the battery after this is done what happens? A. The charge on the capacitoe decreases B. The capacitance of the capacitor decreases C. The energy stored in the field between the capacitor plates increases D. The voltage across a capacitor increases E. None of these choices are true

A parallel plate capacitor has an area of ​​100 cm ^ 2 and a distance between the plates of 1 cm. A dielectric material is inserted and its new capacitance is calculated to be 1.77 x 10 ^ -10 F. Determine the value of the dielectric constant.   a. 2   b. 0.75   c. 2.25   d. 1.5

The figure below shows a parallel plate capacitor with a surface area A and with a gap between its plates. A potential difference is applied between them. Then the battery is disconnected and a dielectric sheet of thickness b and with dielectric constant is placed between the plates as indicated. A.- What is the initial capacitance? B.- What free charge appears on the plates? C.- What is the electric field between the plates and inside the dielectric? D) What is the potential difference between the plates when the dielectric is introduced? E) What is the new capacitance when the dielectric is introduced?

35. In a parallel plate capacitor with air between the plates, each plate has an area of 6 × 10-3 m² and the distance between the plates is 3 mm. Calculate the capacitance of the capacitor. If this capacitor is connected to a 100 V supply, what is the charge each plate of the capacitor? on

2. A parallel-plate capacitor is connected to a battery of voltage, V, until one plate of the capacitor attains a charge, +Q, and the other plate of the capacitor attains a charge, -Q. If the distance between the plates is doubled, а. The capacitance of the capacitor is doubled. b. The potential difference between the plates is cut in half. The potential energy between the plates is cut half. С. d. The electric field between the plates remains the same. e. The area of both capacitor plates doubles.

d = 4.0 cm 2. A proton is sent into a parallel plate capacitor arranged as shown in the figure. Which of the following most correctly describes the path of the proton? A. It will travel straight through. B. It will come instantaneously to a stop and then turn around. C. It will curve to the left. D. It will curve to the right. 2. - - - - - - - + + +