Explain the principle of an aneroid barometer.

Explain the principle of an aneroid barometer by using a schematic diagram or a scale model.

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...wn. Hence the lever arm at the left turns anticlockwise. That is, the lever arm on the right turns clockwise. The pointer [shown by arrow] at the free end of the lever turns clockwise and shows high pressure.

On the other hand, when the atmospheric pressure is low [i.e. ...