The distance between the two plates of a cathode-ray oscilloscope is 1 cm and the potential difference between them is 1200 V. If an electron of energy 2000 eV enters at right angles to the field, what will be its deflection if the plate be 1.5 cm long.

If the electric field between the plates of a cathode ray oscilloscope be 1.2xx10^(4)N//C ,the deflection that an electron will experience if it enters at right angels to the field with kinetic energy 200eV is (the defelction assembly) is 1.5cm long

An electron enters between two horizontal plates separated by 2 mm and having a potential difference of 1000V . The force on electron is

In the Millikan's experiment, the distance between two horizontal plates is 2.5 cm and the potential difference applied is 250 V .The electric field between the plates will be

The p.d between two plates separated by a distance of 1 mm is 100V .The force on an electron placed in between the plates is

When potential difference of 9V is applied between the two plates, electron accelerate between the plates with velocity

The distance between the parallel plates of a charged condenser is d= 5cm and the intensity of the field e = 300V//cm . A slab of dielectric constant k= 5 and 1 cm wide is inserted parallel to the plates. Determine the potential difference between the plates before and after the slab is inserted. If the slab is replaced by a metal plates so that the final potential difference remains unchanged, what be the thickness ofthe plate?