Physics-
General
Easy

Question

Two identical point charges are placed at a separation of l. P is a point on the line joining the charges, at a distance x from any one charge. The field at P is E. E is plotted against x for values of x from close to zero to slightly less than l. Which of the following best represents the resulting curve?

  1.    
  2.    
  3.    
  4.    

The correct answer is:

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