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You place 2.7 μC of charge along a long nonconducting rod. The rod extends from x...

You place 2.7 μC of charge along a long nonconducting rod. The rod extends from x = 0 farther than you can see along the positive x axis. The charge distribution has the form of a decreasing exponential: q(x)=q0e−x/ℓ, where ℓ = 28.6 mm. Calculate the electric field magnitude 20 mm from the near end of the rod, along its long axis.

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