Physics-
General
Easy

Question

Three charges are placed at the vertices of an equilateral triangle of side ‘a’ as shown in the following figure. The force experienced by the charge placed at the vertex A in a direction normal to BC is

  1. Q to the power of 2 end exponent divided by left parenthesis 4 pi epsilon subscript 0 end subscript a to the power of 2 end exponent right parenthesis    
  2. negative Q to the power of 2 end exponent divided by left parenthesis 4 pi epsilon subscript 0 end subscript a to the power of 2 end exponent right parenthesis    
  3. Zero    
  4. Q to the power of 2 end exponent divided by left parenthesis 2 pi epsilon subscript 0 end subscript a to the power of 2 end exponent right parenthesis    

The correct answer is: Zero


    Error converting from MathML to accessible text.

    Hence force experienced by the charge at A in the direction normal to BC is zero.

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