Electric potential at a point is the work done per unit positive charge in bringing a charge from infinity to that point. Its SI unit, the volt, is equivalent to ____.
Correct answer A. J C⁻¹
Explanation
V = W/q, so one volt is one joule per coulomb. N C⁻¹ is the unit of electric field, which is equivalent to V m⁻¹, not V.
Answer checked How we write and check questions
Discussion