Biology, asked by attbhangu5224, 1 year ago

Write flemings's left hand rule and explain it with the help of suitable diagrm

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Answered by jatin3621
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Fleming's Right-hand Rule (for generators) shows the direction of induced current when aconductor attached to a circuit moves in amagnetic field. It can be used to determine the direction of current in a generator's windings.

When a conductor such as a wire attached to a circuit moves through a magnetic field, anelectric current is induced in the wire due toFaraday's law of induction. The current in the wire can have two possible directions. Fleming's right-hand rule gives which direction the current flows.


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The right hand is held with the thumb, index finger and middle finger mutually perpendicular to each other (at right angles), as shown in the diagram.[1]

The thumb is pointed in the direction of themotion of the conductor relative to the magnetic field.The first finger is pointed in the direction of the magnetic field. (north to south)Then the second finger represents the direction of the induced or generatedcurrent within the conductor (from the terminal with lower electric potential to the terminal with higher electric potential, as in a voltage source)

The bolded letters in the directions above give a mnemonic way to remember the order. Another mnemonic for remembering the rule is the initialism "FBI", standing for Force (or otherwise motion), B the symbol for the magnetic field, and I the symbol for current. The subsequent letters correspond to subsequent fingers, counting from the top. Thumb -> F; First finger -> B; Second finger -> I

There is also a Fleming's left hand rule (forelectric motors). The appropriately handed rule can be recalled from the letter "g", which is in "right" and "generator".

These mnemonics are named after British engineer John Ambrose Fleming, who invented them.

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Answered by utkarsh667
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Fleming's left hand rule: According to this rule , if thumb ,forefinger and middle finger of left hand are stretched mutually perpendicularly to each other then, forefinger gives the direction of magnetic field , and middle finger give the direction of current in conductor , then thumb points in the direction of force acting on the conductor.
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