A) \[\frac{q}{m}\]
B) \[\frac{mg}{{{q}^{2}}}\]
C) mgq
D) \[\frac{mg}{q}\]
Correct Answer: D
Solution :
To balance the oil drop the electric force should be equal to the weight of the oil drop. ie, \[qE=mg\] or \[E=\frac{mg}{q}\]
You need to login to perform this action.
You will be redirected in
3 sec
