2 (a) What would you do to obtain
a large deflection of the galvanometer (b) How would you demonstrate
the presence of an induced current in the absence of a galvanometer Solution
(a) To obtain a large deflection, one or more of the following steps can
be taken:  (i) Use a rod made of soft iron inside the coil C2, (ii) Connect
the coil to a powerful battery, and (iii) Move the arrangement rapidly
towards the test coil C1