Class 12PhysicsElectric Potential and CapacitanceRelation between Electric Field and Potential and Potential Gradient
MediumThe variation of potential with distance $R$ from a fixed point is as shown in the graph. The electric field at $R = 5\,m$ is......$V/m$.
- A$2.5$
- B$-2.5$
- C$2/5$
- D$-2/5$
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