Asked by | 25th Nov, 2009, 08:59: AM
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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