What is the difference between Transformer & Induction Motor?

Induction Motor is fundamentally a transformer in which the stator is the primary & the rotor is short-circuited secondary.
The rotor is a stationary part of the induction motor. The rotor current establishes a flux that opposes & tends to weaken the stator flux. because of this more current flows through the stator winding. This can be the same happen the secondary current in a transformer causes a corresponding increase in the primary current of the transformer.
The working principle of both transformer & Induction motor is the same.

Main Difference in Transformer & Induction Motor

A transformer is a static device whereas, Induction Motor is a dynastic machine.
Transformer efficiency is always higher compared to induction motor because there are no moving parts present in this static machine. whereas, in induction motor have mechanical losses occurs.
An iron core is used as a medium for the passage of flux in the transformer & in an induction motor, the air gap is used between rotor & stator.
The frequency of induced EMF & current in the secondary is the same in the transformer whereas the frequency of the rotor is variable.
A transformer is an alternating flux machine while an induction motor is a rotating flux machine.
Transformer transfers electrical power whereas induction motor converts electrical power into mechanical power.
Operate at any kind of power factor depends on the load while induction motor operated on lagging power factor.
In a transformer, both the input & output energy is in the form of electrical energy whereas, in an electrical induction motor input is electrical energy & output is in the form of mechanical energy.