question_answer

Four resistances 10 \[\Omega \], 5 \[\Omega \], 7 \[\Omega \] and 3 \[\Omega \] are connected so as to form the four sides of a rectangle AB, BC, CD and DA respectively. Another resistance of 10\[\Omega \] is connected across the diagonal AC. The equivalent between A and B is:

A)  2 \[\Omega \]                                  

B)  5 \[\Omega \]

C)  7 \[\Omega \]                                  

D)  10 \[\Omega \]