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प्रश्न
What should be the value of R in the figure for which the current in it is zero?
उत्तर
For current to be zero in the middle branch, the circuit should be balanced. According to the Wheatstone bridge principle, balancing a circuit does not depend on the value of resistance R in the middle branch. The circuit in this case is balanced. Hence, any value of R is acceptable.
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संबंधित प्रश्न
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