Physics · Measuring Instruments
In order to eliminate the effect of temperature variations upon the length and controlling torque of the spring in an instrument:
- 1two springs coiled in the same direction are used
- 2two springs coiled in the same and another two in opposite directions are used
- 3three springs coiled are added in the same direction
- 4two springs coiled in opposite directions are used✓
Correct answer
two springs coiled in opposite directions are used
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