The variation of potential with distance 
from a fixed point is as shown below. The electric field at 
is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Intensity at 5m is same as at any point between B and C because the slope of BC is same throughout (i.e., electric field between B and C is uniform). Therefore electric field at R = 5m is equal to the slope of line BC hence by 
;
At R = 1 m, 
and at R = 3m potential is constant so E = 0.
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