What are the drawbacks of meter bridge experiment?

Drawbacks of Meter Bridge Experiment:


Meter Bridge is an apparatus that is used to find the resistance of a metal coil. It consists of constantan. Meter Bridge is based on the Wheatstone Bridge circuit that says that at any point , the ratio of two resistances is equal to the ratio of the other two resistances.

  • Not suitable to measure high or low resistances as bridge is most sensitive at l1 = 50cm.
  • Meter bridge wire may not be exactly one meter length which gives rise to error in measurement.

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