# Physics

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Consider the electric field created by a very long charged line of negative linear charge density -2.50 nC/m.

A small positive point charge of 7 mC moves from a distance of 9 cm to a distance of 17 cm.

How much work is done by the electric field?

• Physics -

Find the E field due to the long wire (Use Gauss law) at some distance r.

Work= E(9)q-E(17)q

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