In a Coolidge tube, electrons strike the target and stop inside it. Does the target get more and more negatively charged as time passes?

When an electron strikes the target in a Coolidge tube, its entire kinetic energy

In the Coolidge tube experiment when the target material is changed then

If the inside of membrane becomes more negative it leads to

When a Coolidge tube is operated for some time it becomes hot. Where does the heat come from?

An x-ray tube is operated at 20 kV and the current through the tube is 0*5 mA . Find (a) the number of electrons hitting the target per second, (b) the energy falling on the target per second as the kinetic energy of the electrons and © the cutoff wavelength of the X-rays emitted.

A diode valve is connected to a battery and a load resistance. The filament is heated so that a constant current is obtained in the circuit. As the cathode continuously emits electrons, does it get more and more positively charged?

Why does an ebonite rod get negatively charged on rubbing with fur ?

50% of the X-ray coming from a Coolidge tube is able to pase through a 0.1 mm thick aluminium foil. If the potential difference between the target and the filament is increased, the fraction of the X-ray passing through the same foil will be

The characteristic of the electrons striking the target in a Coolidge tube, that determines the upper limit of frequency of contimuous X-rays is

The characteristic of the electrons striking the target in an X-ray tube that, determines the intensity of X-rays is