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P, Q, R and S are four resistors of resi...

P, Q, R and S are four resistors of resistances 2, 2, 2 and 3 ohm respectively and are arranged to form a Wheatstone bridge network. Calculate the resistance with which the resistor S must be shunted in order that the bridge may be balanced.

A

`9Omega`

B

`3 Omega`

C

`6 Omega`

D

`2.2Omega`.

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