The adjusted knob knob on the table lamp to adjust the brightness and brightness of the brightness;Electric scalding hot bucket hot bucket spinning knob knob knob knob knob knob uses a sliding resistor.
Sliding changes to the circuit ::
(1) Protect the circuit, that is, good, open and off, before, should slide the sliding film of the resistor
(2) By changing the current -to -current current current current, the current current current current current current is connected with it (using an electrical conduct conduct conduct conduct conduct conduct conductor conductor conductor conductor conductor conductor conductor conductor conductor conductor conductor conductor conductor conductor conductor conductor conductor conductor conductor conductor conductorTwo or two; the actual one should be required.
In addition, daily life often goes to the barrier, and its barrier resistor slides.Essence
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