A parallel-plate capacitor has a plate separation of 1.5 mm and is charged to 400 V. 1) If an electron leaves the negative plate, starting from rest, how fast is it going when it hits the positive plate?

یانزده A parallel-plate capacitor is constructed with plate area of 0.40 m and a plate separation of 0.10 mm. How much charge is stored on it when it is charged to a potential difference of 24 V? O 0.63 µC 0.0.42 µC O 0.84 uC O 0.21 µC Chp

Problem 5 Consider a parallel-plate capacitor with a plate area of A = 8.50 cm². The separation between the plates is d₂ = 3.00 mm (the space between the plates is filled with air). The plates of the capacitor are charged by a 6.00 V battery, i.e., the potential difference between the plates is V₂ = 6.00 V. The plates are then disconnected from the battery and pulled apart (without discharge) to a sepa- ration of df = 8.00 mm. In the following, neglecting any fringing effects. (a) Will the new potential difference between the plates be larger, smaller, or the same compared to the initial potential difference of V₂ = 6.00 V? Explain. (Hint: Note that the charge will not change when the plates are pulled apart. Why is that?) (b) Find the potential difference Vf between the plates after the plates have been pulled to their new, larger separation df. (c) Find the electrostatic energy stored in the capacitor before and after the plates are pulled apart. (d) To separate the plates, you will…

A 0.069 μF capacitor is being held at a potential difference of 24 μV.  Part (a)  What is the charge, in coulombs, on one of the plates?                       Part (b)  If you measure the size of each plate to be 41 cm2, how far apart are the plates, in micrometers?                                                                            Part (c)  What is the magnitude of the electric field inside this capacitor, in newtons per coulomb?