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What is a rheostat and how it workes?
A Rheostat is a variable resistor, for changing resistance by use of a rotary knob or slider.It is simply a long length of wire with a high resistance value (such as Nichrome), wrapped around a...
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How does a rheostat works?
A rheostat is a simple variable resistor with two contacts. A resistor is a device designed to resist the flow of electricity. The more resistance an electronic current encounters, the more slowly...
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How does a rheostat work?
A rheostat is simply a variable resistor. It is engineered so a "wiper" travels along the resistor carbon path. There is minimum resistance at one end of the path, and maximum resistance (what...
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How does a rotary-type rheostat work?
(check related link)
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Why wouldn't copper work in a rheostat?
Copper would not be practical because of its high conductivity. The result of using copper would be that you would need to make very big rheostats to get any useful resistance.