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Four identical charges are placed at the...

Four identical charges are placed at the points `(1,0,0), (0,1,0),(-1,0,0)`, and `(0,-1,0)`. Then,

A

The potential at the origin is zero

B

The field at the origin si zero

C

The jpotential at al points on the z-aixs, other

D

The field at all points on the z-axis, other than the roigin acts along the z-axis

Text Solution

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The correct Answer is:
B, D

` V= V_A + V_B +V_c + V_D =0` ltbRgt ` E= sqrt ((E_A+E_C)^2 + (E_B +E_D)^2) != 0`.
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