Coulombs Law and Electric Field 4 Charges

A quick description on working a problem with 4 charges using coulomb's law.

[datboi]

Thanks so much for this. I have a test soon and this helped tremendously. Thank you again!

[siyabulelamanona]

Thank you very clear and well explained

[oscartesmo]

Sir I would like to ask, I thought the correct way to solved that length of that diagonal line is 2√2 ???

[kimberlyalaba]

Can you do a video about the electric field of this problem?

[Nitesh-ir]

Is columbs law or electric field intensity is same because both force measeaure the force between two charges?