An infinitely long thin straight wire has uniform charge density of \frac{1}{4} \\times10^{-2} {cm}^{-1}. What is the magnitude of electric field at a distance 20 {cm} from the axis of the wire?

Correct Answer is : 2.25×108NC−1

KCET 2020 Physics Solved Paper

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An infinitely long thin straight wire has uniform charge density of

×10−2cm−1. What is the magnitude of electric field at a distance 20cm from the axis of the wire?

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