A) \[R\]
B) \[R\left( \sqrt{3}-1 \right)\]
C) \[3R\]
D) \[R\left( \sqrt{3}+1 \right)\]
Correct Answer: B
Solution :
[b] Let the resistor to be connected across CD be x. Then the equivalent resistance across EF should be x and also across AB should be x. So we get \[\frac{\left( 2R+x \right)R}{3R+x}=x\] Solve to get \[x=\left( \sqrt{3}-1 \right)R\] sYou need to login to perform this action.
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