In the circuit shown here, what is the value of the unknown resistor R – McqOptions

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1.	In the circuit shown here, what is the value of the unknown resistor R so that the total resistance of the circuit between points P and Q is also equal to R [MP PET 2001]
A.	3 ohms
B.	\[\sqrt{39}\,ohms\]
C.	\[\sqrt{69}\,ohms\]
D.	10 ohms
Answer» D. 10 ohms

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