Explanation

An electric transformer works by mutual electromagnetic induction between primary and secondary coils, and an induction cooker heats vessels through eddy currents produced by a changing magnetic field — both are direct applications of Faraday's law of electromagnetic induction. A galvanometer, however, operates on the magnetic effect of electric current: a current-carrying coil placed in a permanent magnetic field experiences a deflecting torque (the motor principle), and it measures current directly without any induced EMF being involved. It therefore has no linkage with the phenomenon of electromagnetic induction, unlike the transformer and the induction cooker.