Strain Gauges - A Level Physics

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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[@sonalrandeny1464]

So clean and direct. Super helpful, thanks.

[@franciscastagna2098]

Great video! The microscope gadget was very neat! Whats the brand name??

[@kokiyoutubechannel9653]

Absolutely amazing sir♥️♥️♥️

[@lucasbecker-lipton4325]

best explanation ive seen

[@tabinkhan9559]

Awesome video sir sir can you do a video on all the topics that will come in the GCSE with a pastpaper exampro and as a because they are exam board for school if you do that I will be nicely admire like that

[@theMadZakuPilot]

Sir I would like to ask if International A level students will have their exams delayed by 3 weeks like the UK students or not?

[@PhysicsOnline]

I’m not sure at the moment - sorry

[@SharkRockstar]

As of now, it depends on the government of where you live, as for UK, the M/J exams are cancelled

[@leonardowilhelmdicaprio999]

Sixth!

[@hot_wheels.7]

3rd