An electrical charge of 2 μC is placed at the point (1,2,3). At the point (2,3,4) the electric field and potential will be :
The electric field , E=14πϵ0qr2=9×109×2×10−6(2−1)2+(3−2)2+(4−3)2=6000NC−1
and potential, V=14πϵ0qr=9×109×2×10−6√(2−1)2+(3−2)2+(4−3)2=6000√3NC−1