A) \[80\times {{10}^{15}}\]
B) \[80\times {{10}^{-}}^{15}\]
C) \[5\times {{10}^{14}}\]
D) \[1.28\times {{10}^{-}}^{17}\]
Correct Answer: C
Solution :
Charge on an electron\[=1.6\times {{10}^{-19}}C\]Number of extra electrons in an object having charge -\[-80\mu C\] \[=\frac{80\times {{10}^{-6}}}{1.6\times {{10}^{-19}}}\] \[=5\times {{10}^{14}}\]You need to login to perform this action.
You will be redirected in
3 sec