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The figure shows a meter brdge  circuit, with AB = 100 cm, X =12 cm and R =18 ohms, and the jockey is in the posn of balance.If R is now 8 ohm, through what distance will J have to be moved   to obtain balance.

(a) 10 cm      (b)20cm          (c) 30cm             (d) 40cm

Tushar Watts , 15 Years ago
Grade 12
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