Type insulated light rods of length l and 2l are placed in xy plane such their mid point is origin and they are free to rotate in xy plane about z-axis. Two + q charges are fixed at two ends of bigger rod and two - q charges are fixed at two ends of smaller rod. Electric field a point (a, 0, 0) is E. Now if a gt gt t then

Type insulated light rods of length l and 2l are placed in xy plane su

1.	Type insulated light rods of length l and 2l are placed in xy plane such their mid point is origin and they are free to rotate in xy plane about z-axis. Two + q charges are fixed at two ends of bigger rod and two - q charges are fixed at two ends of smaller rod. Electric field a point (a, 0, 0) is E. Now if a gt gt t then
Answer» `E alpha (1)/(a^(2))` `E alpha (1)/(a^(3))` `E alpha (1)/(a^(3))` `E alpha(1)/(a^(3))` ANSWER :A

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