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A positive charge 50 uC is located in xy plane at
a position vector r' = 4i+4j. The electric field
strength E at a point whose position vector is
r"= 10i - 4j is (r'
and r" are expressed in metre)
Anonymous:
___k off
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0
i think it's right .......
45 ×10^-6 N/C
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E=(9×10^9×50×10^-6)/10×10=4.5×10³N/C
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