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Physics · L3 · Finding the Force Between Two Charges

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Working through Coulomb's law step by step — from the sign of the charges to whether the force pushes or pulls.

by @openstemUpdated Physics
⚡ Two point charges q1 and q2, separated by rF = k·q1·q2 / r²What are the signs of q1 and q2?🔴 Force is repulsive — pushes apart🔵 Force is attractive — pulls togetherWhat if r doubles?Force drops to 1/4 of originalSame signOpposite signs

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