Question:
The value of can be B me obtained by using a specially
Last updated: 6/30/2023
![The value of can be B me obtained by using a specially](https://media.kunduz.com/media/sug-question-candidate/20200709204222163327-1725248.jpg?h=512)
The value of can be B me obtained by using a specially designed vacuum tube The figure contains a heated filament F and an anode A which is maintained at a positive potential relative to the filament by a battery of known voltage v Electrons get emitted from the heated filament and are accelerated towards the anode which has a small hole in the centre for the electrons to pass through into a region of constant magnetic field B which points into the plain of the paper The electrons then move in a semicircle of diameter d hitting the detector cathode as A F