Question

A current is induced in coil `C_1` due to the motion of current carrying coil `C_2`.
(a) Write any two ways by which a large deflection can be obtained in the galvanometer G. (b) Suggest an alternative device to demonstrate the induced current in place of galvanometer.

Answer 1

(a)When coil `C_(1)` and `C_(2)` held stationary.Coil `C` is connected to a sensitive galvanometer `G` and coil `C_(2)` is connected to a battery through a trapping ket `K`.
When the key is released the galvanometer shows again a momentary deflection.but in the opposite direction The pointer in the galvometer returns to zero almost instantly.The galvanometer direction increases dramatically when an iron rod is inserted into the coils along their axis.
(b) Ammeter can be used in place Galvanometer to read the current.