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  4. Four electrical charges are arranged on the corners of a 10 cm square as shown. What would be the direction of the resulting electric field at the center point P ? <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/physics/7253068f891d65e83cf31f926b884ed8-.png />

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Q. Four electrical charges are arranged on the corners of a $10\, cm$ square as shown. What would be the direction of the resulting electric field at the center point $P$ ?
image

Electric Charges and Fields

Solution:

$E_{1}=E_{4}=2 E_{2}=2 E_{3}$
image
Horizontal components will be canceled, net field will be upward.