Two point charges and are located 20 cm apart in vacuum.

PHYSICS · Multi-part · CBSE · Physics · Electric Charges and Fields · Electric Charges and Fields

Problem

Two point charges qA=3μCq_A = 3 \mu\text{C} and qB=−3μCq_B = -3 \mu\text{C} are located 20 cm apart in vacuum. (1) What is the electric field at the midpoint O of the line AB joining the two charges? (2) If a negative test charge of magnitude 1.5×10−9 C1.5 \times 10^{-9}\text{ C} is placed at this point, what is the force experienced by the test charge?

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