Two point charges +8q and 
are located at 
and 
respectively. The location of a point on the x-axis at which the net electric field due to these two point charges is zero is
A
8 L
B
4 L
C
2 L
D
Text Solution
Verified by ExpertsThe correct answer is:
C
The net field will be zero at a point outside the charges and near the charge which is smaller in magnitude.
Suppose E.F. is zero at P as shown.
Hence at P; 
⇒ ⇒ l = L.
So distance of P from origin is L + L = 2L.
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