What is the electric potential at a distance of 1 point 2 m from a 7 point 5 µC point charge?

For a point charge, electric potential is V = kq/r. Substituting k = 8.99 × 10⁹, q = 7.5 × 10⁻⁶ C, and r = 1.2 m gives V = (8.99 × 10⁹)(7.5 × 10⁻⁶)/1.2 ≈ 5.6 × 10⁴ V. Therefore, the potential is 5.6 × 10⁴ volts, choice D.

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