Equal lengths of managing and nichrome are joined in the left hand and right hand gaps of meter bridge. The null point is at centre of wire. Compare the diameters of the wires. The specific resistance. P=4.8 x 10-8 m, p = 10-6 m. n
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A: Converting the star in delta we get, RA=1x1+1x1+1x11=3Similarly,RB= 3RC= 3
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