4.)
Since, Electric field due to point charge()
= [k*q/(r)^3]*
where, k = 9*10^9
q = charge = 4.31 nC = 4.31*10^-9 C
= displacement vector = (6.0 - 0.0)i + (8.0 - 0.0)j
= 6.0 i + 8.0 j
So, distance(r) = ||
= sqrt(6.0^2 + 8.0^2)
||
= 10.0 m
So,
= [(9*10^9)*(4.31*10^-9)/(10.0)^3]*(6.0 i + 8.0 j)
= 0.03879*(6.0) i + 0.03879*(8.0) j
= 0.233 i + 0.31 j
therefore y-component of electric field(Ey) = 0.31 N/C
Please upvote.
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