Page 2 - LN

 Let north pole goes inward, then galvanometer shows deflection toward right
(say).
 Case 2
 When north pole goes away, then galvanometer shows deflection toward left(in
opposite direction)
 Case 3
 When south pole of magnet goes away from the coil, the galvanometer shows
deflection toward right.
 Case 4
 When south pole goes inward , the deflection toward left.


Experiment 2:

 Activity 2 to Show Electromagnetic Induction with the help of primary coil
and secondary coil.

In the second experiment, Faraday replaced the bar magnet by a second current
carrying coil that was connected to a battery. Here, the current in the coil due to the
connected battery produced a steady magnetic field, which made the system analogous
to the previous one. As we move the second coil towards the primary coil, the pointer in
the galvanometer undergoes deflection, which indicates the presence of the electric
current in the first coil. Similar to the above case, here too, the direction of deflection of
the pointer depends upon the direction of motion of the secondary coil towards or away
from the primary coil. Also, the magnitude of deflection depends upon the speed with
which the coil is moved. All these results show that the system in the second case is
analogous to the system in the first experiment.

 Case 1
 When switch is on the primary coil, the magnetic field linked with secondary coil
changes and the galvanometer shows deflection toward right (say).
 Case 2
 When there is a steady current in the primary coil the galvanometer will show no
deflection.
 Case 3