Electrostatics Question 209
Question: A body has ? 80 micro coulomb of charge. Number of additional electrons in it will be [MP PMT 2003]
Options:
A) $ 8\times {{10}^{-5}} $
B) $ 80\times {{10}^{-17}} $
C) $ 5\times 10^{14} $
D) $ 1.28\times {{10}^{-17}} $
Show Answer
Answer:
Correct Answer: C
Solution:
By $ Q=Ne $ or $ N=\frac{Q}{e}\therefore N=\frac{80\times {{10}^{-6}}}{1.6\times {{10}^{-19}}}=5\times 10^{14} $
