A beam of cathode rays is subjected to crossed Electric (E) and magnetic fields. (B). This fields are adjusted such that the beam is not deflected. The specific charge of the cathode rays is given by
A. \(\mathrm{E}^{2} / 2 \mathrm{VB}^{2}\)
B. \(\mathrm{B}^{2} / 2 \mathrm{VE}^{2}\)
C. \(\frac{2 \mathrm{VB}^{2}}{\mathrm{E}^{2}}\)
D. \(\frac{2 V E^{2}}{B^{2}}\)
Answer:A
A beam of cathode rays is subjected to crossed Electric (E) and magnetic fields. (B). This fields are adjusted such that the beam is not deflected. The specific charge of the cathode rays is given by
A. \(\mathrm{E}^{2} / 2 \mathrm{VB}^{2}\) B. \(\mathrm{B}^{2} / 2 \mathrm{VE}^{2}\) C. \(\frac{2 \mathrm{VB}^{2}}{\mathrm{E}^{2}}\) D. \(\frac{2 V E^{2}}{B^{2}}\)