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प्रश्न
In a metre bridge experiment. the ratio of the left-gap resistance to right gap resistance is 2: 3. The balance point from the left is ______.
पर्याय
60 cm
50 cm
40 cm
20 cm
MCQ
रिकाम्या जागा भरा
उत्तर
In a metre bridge experiment. the ratio of the left-gap resistance to right gap resistance is 2: 3. The balance point from the left is 40 cm.
Explanation:
`2/3=l/1000-l`
∴ `2 (100-l)=3l`
∴ `l=200/5=40 cm`
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