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Questions  

A uniform electric field exists in x-y plane. The potential of points A(-2 m,2 m),B(-2 m,2 m) and C(2 m, 4 m) are 4 V, 16V and 12 V, respectively. The electric field is

a
(4i^+5j^)Vm
b
(3i^+4j^)Vm
c
-(3i^+4j^)Vm
d
(3i^-4j^)Vm

detailed solution

Correct option is D

E¯x=16-42i^=3i^ E→y=-12-42j^=-4j^ E→=(3i^-4j^)Vm-1

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