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Q.

When applying Fleming's left-hand rule, what is the direction of motion or force exerted on the conductor if the index finger points north and the middle finger points east?

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a

South

b

West

c

Top

d

Bottom

answer is C.

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Detailed Solution

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Explanation:

Fleming's left-hand rule helps determine the direction of force on a current-carrying conductor in a magnetic field. According to this rule:

  • Index Finger (Forefinger): Direction of the magnetic field
  • Middle Finger: Direction of the current
  • Thumb: Direction of the force/motion exerted on the conductor

In this scenario:

  • Index Finger: Pointing north (magnetic field direction)
  • Middle Finger: Pointing east (current direction)

When the left hand is oriented so that the index finger points north and the middle finger points east, the thumb will naturally point downward. This indicates that the force exerted on the conductor is directed toward the bottom.

Therefore, the correct answer is d) Bottom.

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