A; A helical potentiometer is just like a screw whereby screwing in or our will change the resistance. the screw is a worm screw with an attached wiper that travels along resistance deposit . Usually it is made for 10 turn pot for precision setting
A: A potentiometer is a manual device to change the resistance A thermistor changes as a function of environment temperature
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Because the potentiometer has a linear curve for resistance. This won't be true for non-linear potentiometers, such as in a volume control application, which needs to be logarithmic.
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A helical groove is a groove that spirals around a round piece of material over its length or part of its length. They are used in things like gearboxes (gears), helical screw compressors, some types of hydraulic pumps, watches, rack and pinion assembly in cars, etc. Please see the link below for visual examples.
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Can anybody help me please. I have a lap top - no mouse. How do I click and drag ?? Please can anybody help me - thank you -You simply have to hold down the bar at the bottom of your trackpad as you drag. :)