The charge on a proton is `+1.6 X 10(-19) C` and that on an
. electron is `-1.6 X 10 (-19)C.` Does it mean that the electron
. has a charge `3.2 X 10(-19) c` less than the charge of a
. proton?

How many electrons are in 1C of charge ?

charges of an electron in esu determined as 4.806 xx 10^(-10) esu. Show that 1C = 3xx 10 ^(9) esu

Assertion: The drift speed of electrons in metals is of the order of few mm / s and charge of an electron is very small (1.6 xx 10^(-19) C) . Yet a large amount of current is obtained. Reason: At room temperature, the thermal speed of electron is very high ( 10^7 times the drift speed). Which one of the following statements is correct?

In the Bohr model of hydrogen atom, the electron is treated as a particle going in a circle with the centre at the proton. The proton itself is assumed to be fixed in an inertial frame. The centripetal force is provided by the Coloumb attraction. In the ground state, the electron goes round the proton in a circle of radius 5.3xx10^-11m . Find the speed of the electron in the ground state. Mass of the electron =9.1xx10^-31 kg and charge of the electron = 1.6xx10^-19C .

An electron gun in a TV shoots out a beam of electrons. The obeam current is 10 mu A. the charge that strikes the screen in 1 minute is

An atom can contain protons which have a positive charge(+) and electrons which gave negative charge (-). When an electron and a proton pair up, they become neutral (0) and cancel the charge out. Now determine the net charge: 6 protons and 6 electrons rarr

An atom can contain protons which have a positive charge(+) and electrons which gave negative charge (-). When an electron and a proton pair up, they become neutral (0) and cancel the charge out. Now determine the net charge: 7 protons and 6 electrons rarr