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A wire connected in the left gap of a meter bridge balance a resistance in the right gap at a point, which divides the bridge wire in ratio . If the length of the wire is , the length of one ohm wire is
(a)
(b)
(c)
(d)

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Important Questions on Current Electricity
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In a practical Wheatstone bridge circuit as shown, when one more resistance of is connected in parallel with an unknown resistance , then, the ratio becomes . If is the balance length and is a uniform wire, then the value of must be

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In the given figure, the galvanometer shows no deflection. What is the value of ?
The length of the potentiometer wire is and resistance is .

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In the shown arrangement of the experiment of the metre bridge if corresponding to null deflection of galvanometer is x, what would be its value if the radius of the wire is doubled?

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