Question
What is the electric-field magnitude 0.25 m from a point charge 1.0e-06 C? Use k = 9×10⁹ N m² C⁻².
Select an option. Your answer will be checked instantly.
Correct Answer: B. 144000 N/C
Explanation:
The electric field of a point charge is E=kq/r².
Substitution gives the stated magnitude.
Leave a Reply