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# Electrostatics - Electric field at the centre of two squares

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A square with sides of 2m has a line charge density of 3 uC/m throughout its four sides. It is inside a square with a line charge density of -2 uC/m, such that the two squares share the same center. This outer square has sides of 4m. What is the electric field at the center of the set up?

Please give a step by step solution, clearly showing what formulas to use.

https://brainmass.com/physics/electric-magnetic-fields/electrostatics-electric-field-centre-two-squares-309201

#### Solution Preview

A square with sides of 2m has a line charge density of 3 uC/m throughout its four sides. It is inside a square with a line charge density of -2 uC/m, such that the two squares share the same center. This outer square has sides of 4m. What is the electric field at the center of the set up.
I need a step by step solution and what formulas to use

Solution:
Fig. below shows a line charge Î» C/m. P is a point at a distance a from the line charge on the perpendicular bisector of the same. Î¸ is the angle made by the line ...

#### Solution Summary

What the electric field is at the center of the set up is determined. The expert provides a step by step solution with formulas.

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