state Fleming's left-hand rule. explain it with the help of labelled diagram.
Answers
Explanation:
When a current-carrying conductor comes under a magnetic field, there will naturally be a force acting on the conductor. Fleming’s Left-Hand Rule is a simple and accurate way to find the direction of force/motion of the conductor in an electric motor when the magnetic field direction and the current direction are known. It was originally developed by John Ambrose Fleming, an English electrical engineer, in the late 19th century.
At its core, the left-hand rule is a visual mnemonic that uses the thumb, the index finger, and the middle finger of the left hand. The hand is held with the palm up, the thumb and middle fingers aligned as though they were joined end-to-end, and the index finger held out in a perpendicular fashion. The rubric for this rule is as follows:
Thumb: The thumb is a representation of the direction of thrust on the conductor.
Index Finger: Also known as the forefinger, this represents the direction of the magnetic field.
Middle Finger: Also known as the center finger, is representative of the direction of the current.
How Does Fleming’s Left-Hand Rule Relate to How Electric Motors Work?
When an electrical current is passed through a conductor (in Fleming’s Rule, this is the middle finger), it generates a cylindrical magnetic field around the conductor. If an external magnetic field (the index finger in Fleming’s rule) is brought within close proximity to the energized conductor, the magnetic field and the electromagnetic field interact. This interaction always produces a physical force (the thumb in Fleming’s rule) that is perpendicularly opposite to magnetic field and the electromagnetic field.
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Answer:
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Explanation:
States that
Strech ur left hands thumb fingut middle finger and forefinger such that they are mutually pèrpendicular ...
Middle finger shows the direction of current ...
Thumb finger shows the direction of motion of the conductor ...
Forefinger shows the direction of magnetic feild ...
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