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Predict the direction of induced current...

Predict the direction of induced current in the situations described by the following figures (a) to (f).

Text Solution

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a. By Lenz.s law, the face of the oil towards the south pole of the magnet opposes the south pole. So this face should behave as south pole. Hence the current flows along qrpq.
b. Similar to the above reason the current flows along yzxy and along prqp.
c. When the coil is energised. with a cell the incresaing current produces an inverse current in the nearby coil along yzxy.
d. Similar to the above reason the current flows along zyxz.
e. By Lenz.s law current is along xryx.
f. Field lines being along the plane of the loop, there is no induced current.
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Knowledge Check

  • The direction of induced current during electro magnetic induction is given by…

    A
    Faraday's law
    B
    Lenz's law
    C
    Maxwell's law
    D
    ampere's law

  • The direction of conventional current is takne as the direction of flow of

    A
    positive charges
    B
    same direction of flow of electron
    C
    opposite to positive charges
    D
    all of these

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