An electorn is separated from the proton through a distance of 0.53 Å. Calculate the electric field at the location of the electron.

An electron and a proton travel through equal distances in the same uniform electric field E. Compare their time of travel. (Neglect gravity)

An electron (mass m_(e ) )falls through a distance d in a uniform electric field of magnitude E. , The direction of the field is reversed keeping its magnitudes unchanged, and a proton(mass m_(p) ) falls through the same distance. If the times taken by the electrons and the protons to fall the distance d is t_("electron") and t_("proton") respectively, then the ratio t_("electron")//t_("proton") .

A proton falls dwon through a distance of 2 cm in a uniform electric field of magnitude 3.34xx10^(3) NC^(-1) . Determine (i) the acceleration of the electron (ii) the time taken by the proton to fall through the distance of 2 cm, and (iii) the direction of the electric field.

The classical method of a hydrogen atom in its normal, unexcited configuration has an electron that revolves around a proton at a distance of 5.3 xx 10^(11)m . (a) What is the electric potential due to the proton at the position of electron ? (b) Determine the electrostatic potential energy between the two particles.

An electron and a proton are seperated by a large distance and the electorn approaches the proton with a kinectic energy of 2 eV. If the electron is captured by the proton to form a hydrogen atom in the ground state, what wavelength photon would be given off?

In a hydrogen atom an electron of mass 9.1 xx 10^(-31) jg revolves about a proton in circular orbit of radius 0.53 Å . Calculate the radial acceleration and angular velocity of electron. [8.9 xx 10^(22) m//s^(2), 4.1 xx 10^(16)s^(-1)]

The point charges Q and -2Q are placed at some distance apart. If the electirc field at the location of Q is E , the electric field at the location of -2Q will be