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Standard XII
Physics
NCERT
Question

Electric potential V at some point in space is zero. Then at that point :


  1. Electric intensity is necessarily zero.
  2. Electric intensity is necessarily non zero.
  3. Electric intensity may or may not be zero.
  4. Electric intensity is necessarily infinite.

A
Electric intensity is necessarily infinite.
B
Electric intensity is necessarily zero.
C
Electric intensity may or may not be zero.
D
Electric intensity is necessarily non zero.
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Solution
Verified by Toppr

E=−dVdl
where E= Electric field intensity ; V= Electric Potential ; l= distance traveled in direction of electric field
Electric intensity at a point is the negative of rate of change of the electric potential at a point. So if a function is zero at a given point, the slope will not necessarily be zero.

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