co.l of insu.ated copper wire is connected to a galvanometer. What wil

1.	co.l of insu.ated copper wire is connected to a galvanometer. What will hapamagnet is:(0) pushed into the coil.(ii) withdrawn from inside the co(ii) held stationary inside the coil
Answer» When the bar magnet is pushed intothe coilor withdrawn fromthe coilthere will be a deflection in the galvanometer. This is because of the induced current inthe coilwhich is generated due to the relative motion betweenthe coiland magnet. (b) When the barmagnet is withdrawn from inside the coil, again an induced current is setup in thecoil due to change of magnetic field through it. As a result galvanometer givesa deflection in the reverse direction. (say towards right). (c) If the bar magnet is heldstationary inside the coil, then there is no induced current in the coil,because there is no change in magnetic field through it. Asa result,galvanometer doesnot show any deflection.

co.l of insu.ated copper wire is connected to a galvanometer. What will hapamagnet is:(0) pushed into the coil.(ii) withdrawn from inside the co(ii) held stationary inside the coil

Answer»

When the bar magnet is pushed intothe coilor withdrawn fromthe coilthere will be a deflection in the galvanometer. This is because of the induced current inthe coilwhich is generated due to the relative motion betweenthe coiland magnet.

(b) When the barmagnet is withdrawn from inside the coil, again an induced current is setup in thecoil due to change of magnetic field through it. As a result galvanometer givesa deflection in the reverse direction. (say towards right).

(c) If the bar magnet is heldstationary inside the coil, then there is no induced current in the coil,because there is no change in magnetic field through it. Asa result,galvanometer doesnot show any deflection.

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