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प्रश्न
In the metre bridge experiment shown in the figure, the balance length AC corresponding to null deflection of the galvanometer is x. What would be the balance length if the radius of the wire AB is doubled?
विकल्प
4x
2x
x
`"x"/2`
MCQ
आकृति
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उत्तर
x
Explanation:
The length of the balancing wire is unaffected by its cross-sectional area.
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