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The electric potential energy of a 2 μC charge is 3×10⁻⁵ J at a point in a uniform electric field. The electric potential at that point is ______ V.

Asked in GSEB Board March 2023 · Work done in moving a charge

• (1) 5
• (2) 15
• (3) 6
• (4) Zero

Step-by-step solution

Why the other options are wrong

• (1) No single slip gives 5 V. Sanity check: U/q = (3×10⁻⁵)/(2×10⁻⁶) = 15 V.
• (3) No single slip gives 6 V: multiplying q and U gives the digit 6, but as 6×10⁻¹¹, not 6. Sanity check: V = U/q = 15 V.
• (4) A uniform field does not make the potential zero. V is measured from a reference point, and a non-zero U means V = U/q is non-zero.

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