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The third brush in a conventional automobile windscreen wiper motor is used to select fast speed. The third brush is located closer to the earth brush than the normal brush. This means there are fewer armature windings between the two contact points which gives a reduced resistance allowing more current to flow and therefore gives a higher speed of operation
What else can I help you with?
What do the two speed wiper motor generally use to achieve the two speeds?
most people believe that the extra current from the third off set brush causes greater magnetic field and therefore greater speed. the issue with that thought is that the increased magnetic field also acts under less of a pole field due to the offset. i believe the more correct answer is that the third brush partially (because of offset) demagnetises the field strength therefore causing less generated, or back EMF allowing the motor to speed up.
What is the typical age of third-graders?
Around 8-9 years old.
Where is the third differential found on a vehicle?
The third member is the complete removable center section of a differential assembly such as a typical Ford 9".
What is Purpose of the third step of photosynthesis?
To get rid of waste
What type of lever is a brush?
A brush is a third-class lever, where the input force is between the fulcrum (pivot point) and the output force (the bristles of the brush). This type of lever increases the speed and distance of the output force, making it easier to sweep or scrub.
How big is a third of a dinner plate?
A third of a typical dinner plate would cover about a third of the plate's surface area, usually around 6-7 inches in diameter.
How do you use a paint brush?
First, wet the paint brush. Second, dab it in the paint you want to use. Third, paint the paper, wall, etc. you are going to paint. It's not that hard.(: WikiAnswers On!
What is the purpose of third law of motion?
It has no purpose. It simply states that for every action, there is an equal and opposite reaction.
What was the purpose of Columbus's third voyage?
To find aliens on Mars
What is the typical age of third graders?
Around 8-9 years old.
On what physics principle does motor propulsion boats works?
on newton's third law
What is the purpose of the toucans nose?
to get fruit im in third grade and i know that
