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AP EAMCET2012PhysicsCurrent Electricity

Four resistors A, B, C and D form a Wheatstones bridge. The bridge is balanced, when C=100 . If A and B are interchanged, the bridge balances for C=121 . The value of D is

Options

  1. A10
  2. B100
  3. C110
  4. D120

Correct answer

C. 110

Step-by-step solution

Balancing condition of bridge balance aligned A B & = 100 x B A & = 121 x 100 x & = x 121 x^2 & =12100 x & =110 aligned

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