1.

A drop of \[{{10}^{-6}}kg\] water carries \[{{10}^{-6}}C\] charge. What electric field should be applied to balance its weight (assume \[g=10m/{{s}^{2}})\]                                                                     [MP PET 2002]

A.            10 V/m upward                   
B.            10 V/m downward
C.            0.1 V/m downward           
D.            0.1 V/m upward
Answer» B.            10 V/m downward


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