Physics

Problem

Two point charges

q_A = 3 \mu\text{C}

and

q_B = -3 \mu\text{C}

are located 20 cm apart in vacuum. a. What is the electric field at the midpoint O of the line AB joining the two charges? b. If a negative test charge of magnitude

1.5 \times 10^{-9}\text{ C}

is placed at this point, what is the force experienced by the test charge?

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