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     EduGorilla 
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    For measuring an unknown resistance, a meter bridge with a standard resistance of 90 Ώ is used. The null point indicated by the jockey is 40 cm on the standard resistance. If the scale used to measure the length of the standard resistance is accurate with a deviation of ±1 mm, the value of the unknown resistance and the deviation is

    Options :-

    1. (60 ± 0.10)
    2. (60 ± 0.20)
    3. (60 ± 0.15)
    4. (60 ± 0.25)
    5. None of these
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