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I asked my father because it didn't know myself.
A Variable resistor is i believe a series of Resistant Materials in the Switch box that the power can go through. Whichever is selected that power goes to the bulb.
Ex.
Weak ---------------------- Strong (Resistant
Weak --o------------------ Strong (Bright Light)
Weak -------------------o- Strong (Weak, dark light)
I hope i am thinking of the right thing.
Enjoy
What else can I help you with?
Why does the blower switch not work on low speeds on your 2001 Xterra?
bad resistor
How does a volume knob work or what happens to make the sound increase when the knob is turned?
They key to volume control is a variable resistor. A variable resistor uses a resistance track with connections at both ends. There is wiper that moves along the track as the volume knob is turned. The tracks are usually rotary for volume knobs, or tracks for volume sliders. The variable resistor may be used as a rheostat, which means that only two terminals are used (the wiper and one end of the track). By turning the knob, the wiper sweeps across the track, which will effectively vary the resistance from 0 to maximum. A rheostat is usually used to vary current so they would be useful for varying the brightness of a lamp. A variable resistor can also be used as a potentiometer, which uses all three connections (both ends of track and wiper). If you connect the track terminals across a power supply, then the wiper terminal is used to provide a voltage, which can be varied from 0 to the maximum (the supply voltage). Potentiometers are usually used for amplifiers. Hope this helps
Why does your fan switch only work on 4 on your Pontiac Montana?
blower motor resistor is bad
What materials will made an electric circuit work?
a dry cell a resistor (a bulb maybe) wire switch
Why does blower fan only work on high on 1994 Nissan pickup?
Bad resistor or a malfunction in the switch.
1996 Chevy blazer fan switch wont work on high I replaced the relay and the fan switch and still no luck?
try a blower motor resistor
Why does a 2003 trailblazer Fan switch not work on first second and third positions?
Could be a bad resistor on blower motor
Your hi and low switch don't work for my 99 Alero?
IF YOUR TALKING ABOUT YOUR A/C OR HEAT, YOU HAVE A DEFECTIVE BLOWER MOTOR RESISTOR
How dimer switsh work?
It works by sending the current through a resistor. As you twist the dimmer switch it changes the length of the resistor and the longer the resistor the more it inhibits the current. So at full brightness the resistor has been totally bypassed as you turn the light down the contact moves further around the resistor making it longer.
1996 Nissan altima heater ac switch will only work on the high 4 won't work on 1 2 3 changed switch still the same thanks for answering?
Heater Blower Resistor
1998 olds intrigue Blower motor does not work in low?
Either it's the switch on the dash (unlikely) or the blower motor resistor pack (very likely). The resistor pack is usually easy to replace.
Your swamp cooler switch works on high only does not work on low speed?
there is a resistor on the fan motor that has gone bad, some models have a resistor unit mounted near the fan in case this happens.
