An infinite sheet of charge that has a surface charge density of 21 nC/m2 lies in the yz plane, passes through the origin and is at a potential of 1.3 kV.(adsbygoogle = window.adsbygoogle || []).push({});

A long wire having a linear charge density of 50 nC/m lies parallel to the y axis and intersects the x axis at 3.2m.

The permittivity of a vacuum is 8.85419*10^-12 C2/N.m2

What is the potential energy of a 2.4 nC charge placed at x = 1.5 m in units of J.

can anybody help me..

I dont know how to use the 1.3 kV potential

I used V=（入/ 2Eoл）× Ln(r1/r2) , U=V×q

but I entered the answer, it was wrong

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# Homework Help: Potential energy question

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