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Strain Gauges - A Level Physics
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This video introduces and explains strain gauges for A Level Physics.
Strain gauges are small sensors that can be attached to real objects, perhaps the foundations of a building or an aircraft wing, to monitor and detect changes in length. A metallic strain gauge has a wire that zig zags up and down inside. As this stretches the changes in length of the wire, along with a decrease in its cross sectional area, increases the resistance of that component. An electrical sensor detects this and provides information on the strain on the material.
Thanks for watching,
Lewis
Relevant for A-level Physics in the following exam boards:
CIE
OCR B
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Strain gauges are small sensors that can be attached to real objects, perhaps the foundations of a building or an aircraft wing, to monitor and detect changes in length. A metallic strain gauge has a wire that zig zags up and down inside. As this stretches the changes in length of the wire, along with a decrease in its cross sectional area, increases the resistance of that component. An electrical sensor detects this and provides information on the strain on the material.
Thanks for watching,
Lewis
Relevant for A-level Physics in the following exam boards:
CIE
OCR B
_____________________________________
MY PHYSICS WEBSITES
Find even more videos organised by exam board and topic at:
GCSE Physics Online
A Level Physics Online
MY YOUTUBE CHANNEL
Your support in watching this video has been invaluable! To contribute towards the free videos on YouTube, make a small donation at:
FOLLOW ME
#alevelphysics #straingauge #physicsonline
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