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Find the electric field at point O, due ...

Find the electric field at point O, due to the segment of a ring, whose linear charge density is `8 C //cm`

A

A. `9 xx 10^(13) V//m`

B

B. `16 xx 10^(13) V//m`

C

C. `8 xx 10^(13) V //m`

D

D. `18 xx 10^(13) V//m`

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