Two large parallel metal plartes are located in vacuum. One of these serves as a cathode, a source of electrons with negligible initial speed. An electron flow directed toward the opposite plate produces a space charge causing the potential in the gap between the plate to very as `V=ax^(4//3)`, where a is a positive constant, and x is the distance from the cathode. find:
(a) The volume density of space charge as a function of x
(b) The current density

Two large parallel plates are located in vacumm. One of them serves as a cathoide, a source of electrodes whose initial velocity is neglible . An electrones flows direcee toward the opposite plate produces a space charge causing the potential int eh gap betwnen the plates to between the plates to very as varphi = ax^(1//3) , where a is positive constant, and x is the distnaace form the cathode. Find: (a) the volume density of the space charge as a funciton of x , (b) the current density.

When a metal slab is placed between the charged identical , parallel plates , the potential difference between the plates

The terminals of a battery of emf V are connected to the two plates of a parallel plate capacitor. If the space between the plates of the capacitor is filled with an insulator of dielectric constant K, then :

Two large parallel metal plates are 1.5 cm apart and have charges of equal magnitudes but opposite signs on their facing surfaces. Take the potential of the negative plate to be zero. If the potential halfway between the plates is then +10.0 V , what is the electric field in the region between the plates?

If A is the area of each plate, charge on it is q and potential difference is V then the distance between the parallel plate capacitor is

An electron having charge e and mass m starts from the lower plate of two metallic plates separated by a distance d . If the potential difference between the plates is V , the time taken by the electron to reach the upper plate is given by .

shows two metallic plates A and B placed . parallel to each other at a separaton d. A uniform . electric field E exists between the plates in the direction . from plate B to plate A. Find the potential difference . between the plates.

Electric potential difference between the positive plate and halfway point between the two parallel plates of a fully charged capacitor is

A parallel plate air capacitor is charged to a potential difference of V volts. After disconnecting the charging battery the distance between the plates of the capacitor is increased using an isulating handle. As a result the potential difference between the plates

A parallel plate air-core capacitro is connected across a source of constant potential difference. When a dielectirc plate is introudced between the two plates then: