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# Two point charges $q_A = 3 \mu C$ and $q_B = −3 \mu C$ are located 20 cm apart in vacuum.If a negative test charge of magnitude $1.5 \times 10^{−9}\; C$ is placed at this point, what is the force experienced by the test charge?

$8.1 × 10^{–3}\; N$ along OA