NCERT Exercise 1.8 - Electric Charges and Fields
Question: Two point charges qA = 3 μC and qB = –3 μC 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 × 10⁻⁹ C is placed at this point, what is the force experienced by the test charge?
Answer: (a) Electric field at midpoint O = **5.4 × 10⁶ N/C**, directed from the positive charge qA toward the negative charge qB (i.e., from A to B). (b) Force on the test charge = **8.1 × 10⁻³ N**, direct...
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