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A proton und un electron move between two ports having a potential difference V. a. Which gains more energy b. Define electron volt. c. How is 1e V and 1 MeV related to joule? d. Write the dimensional formula of electrostatic potential. |
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Answer» Solution :Both GAIN the same energy Work done=energy gain =Potential difference `xx " Charge"` The p.d. and charge are same for each. b. One eV is the kinetic energy acquired by an electron accelerated on an electric field of p.d. one volt. C. 1MeV `=10^(6)eV =1.6 xx 10^(-13)J` `1eV= 1.6 xx 10^(-19)J` `d. [V]=([W])/([q])=([ML^(2) T^(-2)])/([1 xx T])=[M^(1) L^(2) T^(-3) I^(-1)]` |
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