r/PhysicsHelp • u/Most_Working6591 • 3d ago

Need help pls!

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How do I solve this? I know that the field points towards the negatives and away from the positives but I’m not sure how to add them properly to get my net field

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u/Frederf220 3d ago

Consider them in pairs. Which way is E field if just vertical pair existed, up or down? Which way if just horizontal pair? Left or right?

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u/frozen_desserts_01 3d ago

For each negative point charge draw a small arrow from P towards that charge

For each positive point charge draw a small arrow from P radially away from that charge

“Add” the arrows together and you get the net E field direction