The electric intensity due to a dipole of length 10 cm and having a charge of 
, at a point on the axis at a distance 20 cm from one of the charges in air, is
A
N/C
B
N/C
C
N/C
D
N/C
Text Solution
Verified by ExpertsThe correct answer is:
A
By using 
where
p = (500 × × 10 –6 ) × × (10 × × 10 –2 ) = 5 × × 10 –5 
,
r = 25 cm = 0.25 m, l = 5 cm = 0.05 m
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