A) 50
B) 80
C) 2.50
D) 6.80
E) 7.80
Correct Answer: A
Solution :
Equivalent circuit of the given circuit is Between points C and D resistors 2\[\Omega \], 2\[\Omega \] and 2\[\Omega \] are in series, therefore their equivalent resistance, \[R=2+2+2=6\,\Omega \] Resistors\[R\]and \[6\,\Omega \] are in parallel, therefore their equivalent resistance is given by \[\frac{1}{R\,\,}=\frac{1}{6}+\frac{1}{6}\] \[R\,\,=3\Omega \] Now between points A and B 1\[\Omega \], 3\[\Omega \] and 1\[\Omega \] are in series. Therefore, resultant resistance is \[R=1+3+1=5\Omega \]You need to login to perform this action.
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