1.

Electric charges of \[1\mu C,\,-1\mu C\] and \[2\mu C\] are placed in air at the corners A, B and C respectively of an equilateral triangle ABC having length of each side 10 cm. The resultant force on the charge at C is      [EAMCET (Engg.) 2000]

A.   0.9 N    
B. 1.8 N
C.   2.7 N
D.   3.6 N
Answer» C.   2.7 N


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