a problem.

Asked by  | 25th Nov, 2009, 08:59: AM

Expert Answer:

Wheatstone bridge is included in the syllabus of class XI  ( CBSE). To understand the above qestion, you must know what is a wheatstone bridge.

wheatstone bridge is an electrical circuit that is used to measure the electrical resistance. It consists of resistances connected in four arms. A galvanometer (G) is connected across two opposite junctions, and a source of emf is connected across the remaining two junctions ( as described in the above question).

In balanced condition, the ratio of resistances in both the arms is same and hence no current flows through the galvanometer.

Answered by  | 25th Nov, 2009, 01:44: PM

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