Q.

In the circuit shown, the value of R in ohm that will result in no current through the 30 V battery, is

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a

10 Ω

b

25Ω

c

30Ω

d

40Ω

answer is C.

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Detailed Solution

As there is no current through 30 V cellHence, VAB = 30 V = iRand i=50−3020=1AHence R=30Ω
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In the circuit shown, the value of R in ohm that will result in no current through the 30 V battery, is