Question
Two identical particles each of mass M & charge Q are placed some distance apart . If they are in equilm under mutual gravitational & electric force then calculate the order of signature of charge Q/M in SI system.
ANS = 10-10 C/kg
Joshi sir comment
on comparing gravitational force and electrical force,
we get 9*109 * q2/r2 = 6.67*10-11* m2/r2
so q/m = 10-10 approx
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SARIKA SHARMA 12 year ago
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