Question

Figure shows three points A, B and C in a region of uniform electric field $ \mathbf{\vec{E}}. $ The line AB is perpendicular and BC is parallel to the field lines. Then which of the following holds good?

• A. $ {{V}_{A}}={{V}_{B}}={{V}_{C}} $
• B. $ {{V}_{A}}={{V}_{B}}>{{V}_{C}} $
• C. $ {{V}_{A}}={{V}_{B}}<{{V}_{C}} $
• D. $ {{V}_{A}}={{V}_{B}}>{{V}_{C}} $

Answer 1

Answer: (B)

Where $ {{V}_{A}}>{{V}_{B}} $ and $ {{V}_{C}} $ represent the electric potential at points A, B and C respectively. Electric lines of force flow from higher potential to lower potential so, $ {{V}_{A}}={{V}_{B}}>{{V}_{C}} $