Three resistance P, Q, R each of 2Ω and an unknown resistance S form the four arms of a Wheatstone bridge circuit. When a resistance of 6Ω is connected in parallel to S the bridge gets balanced. What is the value of S [2007]

Question:

Options :

a)2Ω
b)3Ω
c)6Ω
d)1Ω

Answer :

b)3Ω

Answer Steps :

Step:-1

Step:-2

Step:-3

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