The Resistance of 11 is Connected in Right Gap. If Null Point is Obtained at a Distance of 45 Cm from the Left End, Find the Resistance of Metal Ring. - Physics

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Two diametrically opposite points of a metal ring are connected to two terminals of the left gap of meter bridge. The resistance of 11 Ω is connected in right gap. If null point is obtained at a distance of 45 cm from the left end, find the resistance of metal ring.

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R = 11Ω , lx = 45cm


Let x be theresistance of metal ring

∴Equivalent resistance in left gap


`:. R_p=x/4`

From balancing condition




∴ x=9x4


Concept: Meter Bridge
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2013-2014 (March)



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