A student has three resistors, each of resistance R. To obtain a resistance 2/3R. she should connect :

A student has three resistors, each of resistance R. To obtain a resistance 2/3R. , she should connect
(A) all the three resistors in series.
(B) all the three resistors in parallel.
(C) two resistors in series and then this combination in parallel with the third resistor.
(D) two resistors in parallel and then this combination in series with the third resistor.

Correct Answer : Option (C) two resistors in series and then this combination in parallel with the third resistor.

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