ElectrostaticsHard
Question
Two point charges +q and are - q held fixed at (-d,0)and (d,0) respectively of a a - y coordinate system .Then
Options
A.The electric field E at all points on the has same direction
B.work has to be done in bringing a test charge from ∞ to the orgin
C.electric field at all polnts on y-axis is along x-axis
D.the diploe moment is 2qd along the x-axis
Solution
If we take a point M on the X-axis as shown in the figure, the net electric field is in X-direction.
∴ Option (a) is incoreect.
If we take a point N on Y-axis, We find net electric field along +X direction. The sams will be true for any point on Y-axis b(c) is a correct option.
W∝ 0 = q(V∝ - V∝) = q(0 - 0) = 0
∴ is incorrect. The direction of diple moment i9s from -ve to +ve. Therefore (d) is incorrect.
∴ Option (a) is incoreect.
If we take a point N on Y-axis, We find net electric field along +X direction. The sams will be true for any point on Y-axis b(c) is a correct option.
W∝ 0 = q(V∝ - V∝) = q(0 - 0) = 0
∴ is incorrect. The direction of diple moment i9s from -ve to +ve. Therefore (d) is incorrect.
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