Answered

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(2) Why do spring balance shows wrong reading after they had been uses for a long time?​

Sagot :

sainvineeta021

This is because of continuous usage, the wire loses its elasticity and dose not regain it original dimension

Answer:

When a spring balance has been used for a long time, the spring in the balance fatigued and there is loss of strength of the spring. In such a case, the extension in the spring is more for a given load and hence the balance gives wrong readings.

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