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Which rule gives the direction of induced current due to electromagnetic induction?
(A) Fleming’s left hand rule
(B) Maxwell’s left hand rule
(C) Ampere’s rule
(D) Fleming’s right hand rule

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Last updated date: 17th Apr 2024
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Answer
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Hint The current is induced in the current carrying wire, when the electromagnet is kept near to the current carrying wire. So that the induced current and the magnetic field is perpendicular to both. The direction of the induced current is given by the three stretched fingers.

Complete step by step solution
The direction of the induced current when there is the relative motion between the conductor in the magnetic field is perpendicular to the plane containing the direction of the relative motion of the conductor and the magnetic field. So, the direction of the induced current is expressed by Fleming's right hand rule.
Stretch the forefinger middle finger and the thumb, so that the three fingers are perpendicular to each other, then the Fleming’s right hand rule state that the thumb finger shows the direction of the motion of the current, the fore finger shows the direction of the motion of the magnetic field and the middle finger shows the direction of the motion of the induced current.

Hence, the option (D) is the correct answer.

Note The students must not be confused with both Fleming’s right hand rule and Fleming's left hand rule. The right hand rule shows the direction of the motion of the conductor and the direction of the motion of the magnetic field and the direction of the motion of the induced current. But the left-hand rule shows the direction of the electric motor, direction of the magnetic field and the direction of the current.