Question

Help ,,
The coils A and B are wrapped around a non conducting cylinder coil A connected to a battery and a key and coil B with the galvanometer.
A) when will the galvanometer show deflection.
B) state the phenomenon.
C)what is the effect in coil a when the plug key is pressed?

Answer 1

a)When the current flows through coil A
b)Electro Magnetic Induction.
c)The magnetic field of coil A changes which in turn changes the field of coil B and hence current is induced.

Answer 2

when there is a change in the magnetic field around a conductor, it produces magnetic flux , then there will be a deflection in the galvanometer in the other conductor.


this phenomenon is known as electromagnetic induction.


when the plug key is pressed then the current flows from coil which produces a magnetic field around it and coil B which is associated with it , experiences induction of current in it.