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What causes the electrical polarity of the armature to reverse?
poles of an armature can be reversed by the arrangement of split-rings
What causes a fan blower on a 2003 aztek to stop working?
the blower fan resistor has gone bad.
What is an example of reverse polarity?
Reverse polarity means connecting a power source, or polarised componenet, with the positive and negative poles the wrong way round. If the positive and negative supply is connected the wrong way round in electronic devices, it usually causes damage, because semiconductors are sensitive to polarity. Sometimes protection is provided, so that reverse polarity stops the device from working without causing damage. Connecting a diode (or rectifier) in reverse, will block the flow of current, without causing damage and is useful in protecting circuits from reverse polarity. In some consumer electronics (especially CB Radios) the power input has a recitifier across the 12v supply. If it is wired correctly, the rectifier is in reverse polarity, does not conduct and allows the radio to work. If you reverse the polarity of the power supply, the rectifier is now in full conduction, across the supply, causing a dead short. This shunts any power away from the radio and blows the fuse in the line, thus protecting it.
What are the causes of failure of d.c shunt generator to excite?
no residual magnetism in the stator. this can happen with an overload which will occasionally even reverse the output polarity
What causes the AC Heater blower fan to stop working on a 1999 cavalier?
Check the fuses.If not the fuse, test the resistor down by the blower motor.
What could be possible causes for a blower motor to stop working in a 1989 Ford Crown Vic?
It could be the relay
What causes the moon to tilt?
polarity of the moon
What causes the reverse to stop working in your car?
Most likely the reverse band (in an automatic) - Also note that some of these cars used an anti-fill/drain-back valve in the valve body, this can cause a delay in how long it takes for reverse or low to start working.
What causes the blower on a 2001 Chevy Silverado to work on high but not on low?
the blower fan rheostat usually located in blower box is like a resistor that draws energy from the blower fan supply to slow it down and there is a high speed fan relay for the fastest speed. So your rheostat is not working
What causes your left tail light to stop working?
AnswerBulb defective, replace. hitting your wife while in reverse!
What would cause the blower fan in a 98 Plymouth Neon to stop working The antifreeze has been checked and is full and good to -39?
Possible causes could be, fuse, relay, sensor, blower motor or electrical connector.
What causes the blower motor resistor to short out?
Check the resistance on the blower motor.
