A charged wire of negligible thickness has length 2L units and has a linear charge density λ. Consider the electric field E⃗ at the point P, a distance d above the midpoint of the wire.

The electric field at point P is

Explanation:

Given that,

Length = 2L units

Linear charge density = λ

We need to calculate the electric field at point P

Using formula of electric field

Put the value into the formula

Hence, The electric field at point P is

like poles repel so keep pushing north to north and repels funny to see this

what experimental evidence led scientists to change from the previous model to this one?

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experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.