A) \[2.7\]
B) \[3.3\]
C) \[4.4\]
D) \[5.2\]
Correct Answer: C
Solution :
Let the equivalent resistance be\[x\], circuit can be redrawn as Then, \[x=1+\frac{x}{1+x}+1\] or \[{{x}^{2}}-2x-2=0\] \[\therefore \] \[x=\frac{2\pm \sqrt{4+4\times 1\times 2}}{2\times 1}\] or \[x=\frac{2\pm 2\sqrt{3}}{2}\] or \[x=(1\pm \sqrt{3})=1+1.732=2.7323\] Current drawn by the cell \[I=\frac{V}{x}=\frac{12}{2.732}=4.4\,A\]You need to login to perform this action.
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