Conduction is not possible in gases at normal pressure because Number of gas atoms is less so free electrons do not find sufficient space to move and ionise other gas atoms. Number of gas atoms is more so free electrons do not find sufficient space to move and ionise other gas atoms. At normal pressure temperature is high so free electrons cannot move freely none of these. An electron enters uniform electric field parallel to the direction of field. Will there be any change in the trajectory of this electron? Yes, speed of electron increases Yes, speed of electron decreases No, speed of electron may increase or decrease Electron comes to rest. An electron enters uniform electric field perpendicular to the direction of field. Will there be any change in the trajectory of this electron? No, but speed will decrease yes, it will move in parabolic path No, but speed will increase Electron comes to rest. Which experiment explains the dual nature of matter [fast moving electron]? J.J. Thompson Experiment G.P. Thompson Experiment Coolidge tube None of the above. The negative potential which can stop emission of electrons is called high potential low potential stopping potential increasing potential.
