Question: Two charges, QA and QB, are located 20 cm apart as shown. When a third charge is placed at the x mark, 10 cm

Two charges, QA and QB, are located 20 cm apart as shown. When a third charge is placed at the x mark, 10 cm from QB, the electric force on Qc is zero. Find the value (including sign) of QB. Q = 6 x 10-9 C 20 cm QB = ? 10 cm

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