Using simply a capacitor and a resistor, the timing interval can be adjusted and so can be utilized for quite a few applications together with timers, clocks, switches, safety alarms and tone mills. An thought for an EEI could be to test the accuracy of the timing circuit.
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So when you could measure the stress within the string with a force sensor and capture the information with a laboratory interface, a plot of drive vs. time should give you the peaks that you need. For a typical hand-held torch working at say 6V DC, the combination of frequencies should be such that the color appears white to the eyes. At low voltages – and therefore low filament temperatures – the filament glows a boring pink, however because the voltage is increased, the temperature additionally increases. This elevated temperature not only produces “whiter” mild as extra of the blue finish of the spectrum is added to the red/yellow frequencies already being produced, but in addition increases the resistance.
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For a normal 6V bulb with a cool resistance of say 25 ohm, this enhance may change the resistance to many instances that worth at the operating temperature of 5000 Kelvin (which appears as ‘white’ gentle). As mentioned above, the energy provided to a lightbulb from an electrical power source is converted into gentle and warmth. Sometimes you need the sunshine and no heat ; different times you want warmth and light-weight (in a rest room warmth lamp or the hot-food display at a take-away store). However, one of many good things about EEIs is that you could extend the experiment to find conditions that give surprising results. For instance, when the wire is a short size the present might be large and heating will occur. Heating impacts resistance and you need to be maintaining temperature fixed.
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Perhaps you would place the wire in water to maintain it cool but then it might contact itself and provides a ‘quick’ circuit. How would you stop this; perhaps with masking tape, possibly winding it on to a plastic rod so the turns do not contact.
The downside is – how do you measure it’s accuracy when the stopwatch you’ll used is based on a 555 timer anyway? Perhaps you could see if the error is expounded to the tolerances of the resistor and capacitor; or perhaps you could make a few of them and see how they differ; or perhaps you can see how dependable they’re with various temperatures. The intramolecular forces between nylon polymer chains in nylon 6, 6 are the quite robust hydrogen bonds so the lack of power might be vital. But as you realize out of your examine of SHM, the forces on the bob aren’t fixed – they’re the least when the bob reaches it is most displacement .