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Questions  

Find the value of R for which no current will flow through 5 V battery.

a
4  Ω
b
3.5  Ω
c
3  Ω
d
5  Ω

detailed solution

Correct option is B

If no current flows through 5V battery then potential difference across/and e is 5 V. So potential difference across d and c is also 5 V.i=10R+1iR=5 ⇒  10R+1  R=5 ⇒  R=1 Ω

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