Q.
ABC is an equilateral triangle. Three identical charges each +q are placed at each corner. Electric intensity at the centriod of triangle is
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a
14π∈0 qr2
b
14π∈0 qr
c
Zero
d
14π∈0 3qr2
answer is C.
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Detailed Solution
The net upward field is equal to net down ward field
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