What part of an electric motor consists of copper windings in a laminated steel core?

The part of an electric motor that consists of copper windings in a laminated steel core is the stator. The stator is critical to the operation of the motor because it generates a magnetic field when electricity flows through the copper windings. This magnetic field interacts with the rotor, the rotating part of the motor, facilitating the conversion of electrical energy into mechanical energy.

The use of laminated steel in the stator is important as it reduces energy losses due to eddy currents, which can occur when magnetic fields change. This design enhances the efficiency and performance of the motor.

In contrast, the rotor also contains windings but is not solely defined by copper windings; instead, it often has its own construction characteristics that allow it to move. The commutator serves a different function in certain types of motors, primarily involving the reversal of current direction, and insulation is used to protect the motor's internal components but does not pertain to the specific structure of windings or cores.