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Four point charges are located at the corners of a square. Each charge has magnitude 2.80...

Four point charges are located at the corners of a square. Each charge has magnitude 2.80 nC and the square has sides of length 3.00 cm. Find the magnitude of the electric field (in N/C) at the center of the square if all of the charges are positive and three of the charges are positive and one is negative.

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Answer #1

Concept used:- here we add the field due to individual charges to find the resultant field as shown below,

t all the charger aru positv, eeD at centr amo C cancel each oamo d chares at comur A 3 ana c cancal each or ano el at centr due charges at coowr s and P cancel each 아an anc -Huo one charge at, sad, corner Bisnu,«N 3 eaual maą nitue at center m ar+B

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