A) \[12\,\Omega \]
B) \[2\,\Omega \]
C) \[4\,\Omega \]
D) \[8\,\Omega \]
Correct Answer: C
Solution :
A uniform wire resistance is\[18\,\Omega \]. When it is bended into equilateral triangle then length of each side is same and its resistance is \[\frac{18}{3}\,\,=\,\,6\,\Omega \]. \[{{\operatorname{R}}_{eqAB}}\,=\,\frac{12\times 6}{12+6}\,=\,\frac{72}{18}\,=\,4\,\Omega \]You need to login to perform this action.
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