ElectrostaticsMedium
Question
A proton is about 1840 times heavier than an electron when it is accelerated by a potential difference of 1 kV, its kinetic energy will be
Options
A.1840 keV
B.1/1840 keV
C.1keV
D.920 V
Solution
When a charge q is accelerated by a potential difference of V, the energy imported to it is qV. It does not depend upon the mass. In the given problem potential diff = 1kV. Charge on the proton = charge on electron = 1.6 × 10-19 coulomb. Tyhe eanrgy impared = 1keV.
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