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The figure represents two equipotential lines in ( x - y ) plane for an electric field. The ( x )-component ( E _ x ) of the electric field in space between these equipotential lines is,

Options

  1. A(100 ~V / m )
  2. B(-100 ~V / m )
  3. C(200 ~V / m )
  4. D(-200 ~V / m )

Correct answer

B. (-100 ~V / m )

Step-by-step solution

Hint : (E_ x =- d v d x =- ( 4-2 2 )=-1 ~V / cm =-100 ~V / m )

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