Work, Power and EnergyHard
Question
Consider a system of three charges
and
placed at points A, B and C, respectively, as shown in the figure. Take O to be the centre of the circle of radius R and angle CAB = 60o
Figure:

and
placed at points A, B and C, respectively, as shown in the figure. Take O to be the centre of the circle of radius R and angle CAB = 60oFigure:

Options
A.The electric field at point O is
directed along the negative x-axis
directed along the negative x-axisB.The potential energy of the system is zero
C.The magnitude of the force between the charges at C and B is 

D.The potential at point O is 

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